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		<title>光焱科技第五届 “论文奖学金激励计划&#8221;</title>
		<link>https://enlitechsy.com/enlitech-5th-paper-scholarship-incentive-program/</link>
		
		<dc:creator><![CDATA[廖, 婉清]]></dc:creator>
		<pubDate>Thu, 02 Apr 2026 07:12:57 +0000</pubDate>
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					<description><![CDATA[<p>光焱科技第五届&#8221;论文奖学金激励计划&#8221; 活动公告 光焱科技自2020年启动&#8221; [&#8230;]</p>
<p>這篇文章 <a href="https://enlitechsy.com/enlitech-5th-paper-scholarship-incentive-program/">光焱科技第五届 “论文奖学金激励计划&#8221;</a> 最早出現於 <a href="https://enlitechsy.com">胜焱电子科技-光焱科技 ENLITECH</a>。</p>
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			<style>/*! elementor - v3.18.0 - 06-12-2023 */
.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}</style>				<p style="text-align: center;"><span style="color: #00ccff;"><strong><span style="font-size: 24pt;">光焱科技第五届&#8221;论文奖学金激励计划&#8221;</span></strong></span></p><h3>活动公告</h3><p><span data-contrast="auto">光焱科技自2020年启动&#8221;论文奖学金激励计划&#8221;以来，在众多课题组老师和同学的大力支持下，已连续成功举办四届，累计发放奖学金三十余万元。</span></p><p><span data-contrast="auto">活动期间累计收到来自海内外的500余篇优秀期刊论文申请。越来越多的新型太阳能电池、光电探测器、光电器件、光电二极管、图像传感器科研课题组使用光焱科技的设备开展科研创新，并不断取得重大效率突破，我们欣喜之余也倍感骄傲。</span></p><p><span data-contrast="auto">为持续助推科研发展，感谢各位科研工作者对我们的支持，光焱科技将举办2026年暨第五届&#8221;论文奖学金激励计划&#8221;。为鼓励广大科研工作者使用光焱科技的产品发表更多、更优秀的论文，本届奖励总金额不设上限，欢迎踊跃申请、积极投稿。 </span></p><h3>一、奖励规则</h3><p><span data-contrast="auto">1、申请文章（正文或SI）中必须正确注明产品名称与型号、产品参数或使用条件，并须包含公司名称&#8221;Enli Technology Co., Ltd.&#8221;或&#8221;Enlitech&#8221;品牌；&#8221;胜焱电子科技&#8221;或&#8221;胜焱&#8221;&#8221;胜焱电子&#8221;字样。</span></p><p><span data-contrast="auto">2、论文中所提及的同一类设备仅限 Enlitech / 光焱科技 / 胜焱电子科技 / 胜焱 的设备类产品如下：</span></p><p><img wpfc-lazyload-disable="true" decoding="async" class="aligncenter" src="https://enlitechsy.com/wp-content/uploads/2026/04/適用產品1.webp" alt="" width="873" height="155" /></p><p><span data-contrast="auto">备注：标准电池、载台等配件不列入计算。 </span></p><p><span data-contrast="auto">3、申请者须为申请奖励论文的第一作者，相同文章只可申请一次，同一课题组请勿重复申请。申请者每年奖励论文上限三篇（限QE/SS/REPS/FTPS），其余产品不限。</span></p><p><span data-contrast="auto">4、2025年1月1日至2026年12月31日之间发表的论文均可申请，论文IF影响因子数值以发表时的当期IF为准；正文和SI中均有提及时，以正文奖励标准为准。</span></p><p><span data-contrast="auto">5、符合申请资格的作者，请点击<a href="https://enlitechsy.com/wp-content/uploads/2026/04/2026光焱科技奖学金投稿申请表单.docx" target="_blank" rel="noopener" download=""><b>下载申请表单</b></a>，填写完成相关信息后一并发送至指定邮箱。</span></p><p><span data-contrast="auto">6、活动投稿有效期：自即日起至2027年5月31日止，逾期不予受理。</span></p><h3> </h3><h3>二、奖励标准</h3><div><img wpfc-lazyload-disable="true" decoding="async" class="aligncenter" src="https://enlitechsy.com/wp-content/uploads/2026/04/適用產品及獎勵標準.webp" alt="" width="853" height="247" /></div><p><span data-contrast="auto">备注：奖学金计算方式为 IF数值 × 奖金系数，IF数值取整计算（舍去小数部分）。我司代扣代缴个人所得税，偶然所得适用税率20%，奖学金税后发放。币别：人民币。非大陆地区获奖者，奖学金汇率换算及所得税预扣缴金额，依当地当时法规由光焱科技计算后发放。</span></p><p><span data-contrast="auto">※ 若论文正文有使用 Enlitech / 胜焱 检测设备所获得的数据图，同样按正文奖励标准计算，请投稿者特别标注。</span></p><p><span data-contrast="auto">※ 若论文中使用的 Enlitech / 胜焱 设备为两款及以上，以奖金较高的设备作为计算基准，其余设备每款另享额外奖励100元。</span></p><h3>Q&amp;A</h3><p><span data-contrast="auto"><strong>Q：</strong>2025年我的申请文章IF影响因子为30.88，在正文中引用了 Enlitech / 胜焱 和 QFLS-Maper，请问奖学金如何计算？</span></p><p><span data-contrast="auto"><strong>A：</strong>IF数值取整计算，30.88 → 取整为30。在正文中提及光焱科技 / Enlitech / 胜焱 / 产品，适用正文奖励标准（IF ≥25 对应系数50）。奖学金计算如下：30 × 50 = 1500元（税前）；税金（20%）：300元；实发金额：1200元（税后）。</span></p><h3> </h3><h3>三、申请流程</h3><p><span data-contrast="auto">请由论文申请人提交申请材料，发送邮件至光焱科技奖学金申请邮箱：<strong>scholarship@enli.com.tw</strong>，邮件内容及格式要求如下：</span></p><p><span data-contrast="auto">1、邮件标题：【2026光焱科技奖学金申请】+ 单位院校 + 课题组老师 + 申请人姓名 + 发表期刊名称 + IF因子。示例：【2026光焱科技奖学金申请】XX大学 XX老师课题组 张同学 Nature IF 30.68</span></p><p><span data-contrast="auto">2、邮件附件：</span></p><p><span data-contrast="auto">　　a. 已发表论文的原件或电子版PDF，并用蓝色底色对符合奖学金计划规则的文字信息进行标注；</span></p><p><span data-contrast="auto">　　b. 已填写完整的申请表单。</span></p><p><span data-contrast="auto">注：请申请人按照邮件格式要求进行申请，不符合要求者请勿投递；代他人申请视为无效。</span></p><h3> </h3><h3>四、注意事项</h3><p><span data-contrast="auto">1、申请者需在邮件正文中留下正确的联系方式，以便及时联系确认与发放论文奖金（包括申请人姓名、单位院校、课题组老师联系方式、邮箱、申请人手机号、微信号等）。</span></p><p><span data-contrast="auto">2、奖学金申请邮箱：scholarship@enli.com.tw</span></p><p><span data-contrast="auto">3、经光焱科技审核通过后，公司将与论文作者联系并发放奖金。&#8221;光焱科技奖学金激励计划&#8221;所有奖金金额均为税前金额。</span></p><p><span data-contrast="auto">最终解释权归光焱科技股份有限公司 / 胜焱电子科技（上海）有限公司所有。</span></p><p><span data-contrast="auto">2026年3月31日</span></p><p><span style="color: #3366ff;"><strong>Enlitech</strong></span></p><p><span style="color: #3366ff;"><strong>顶尖团队的选择</strong></span></p><p><span style="color: #3366ff;"><strong>加速您的研究进展！</strong></span></p>						</div>
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		<p>這篇文章 <a href="https://enlitechsy.com/enlitech-5th-paper-scholarship-incentive-program/">光焱科技第五届 “论文奖学金激励计划&#8221;</a> 最早出現於 <a href="https://enlitechsy.com">胜焱电子科技-光焱科技 ENLITECH</a>。</p>
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		<title>SS-LED220：高精度光谱调控用于 PVK/Si 叠层电池特性表征</title>
		<link>https://enlitechsy.com/ss-led220-pvk-si-tandem-cell-characterization-led-solar-simulator/</link>
		
		<dc:creator><![CDATA[廖, 婉清]]></dc:creator>
		<pubDate>Tue, 27 Jan 2026 09:55:45 +0000</pubDate>
				<category><![CDATA[LED]]></category>
		<category><![CDATA[太阳光模拟器]]></category>
		<category><![CDATA[文章（简）]]></category>
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					<description><![CDATA[<p>目录 精准光谱调控：SS-LED220 助力 PVK/Si 单结特性表征 面向 PVK/Si 叠层电池研究的高 [&#8230;]</p>
<p>這篇文章 <a href="https://enlitechsy.com/ss-led220-pvk-si-tandem-cell-characterization-led-solar-simulator/">SS-LED220：高精度光谱调控用于 PVK/Si 叠层电池特性表征</a> 最早出現於 <a href="https://enlitechsy.com">胜焱电子科技-光焱科技 ENLITECH</a>。</p>
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							<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">精准光谱调控：SS-LED220 助力 PVK/Si 单结特性表征</h2><h3 style="font-size: 20px; font-weight: bold;">面向 PVK/Si 叠层电池研究的高精度解决方案</h3><p><b>Enlitech SS-LED220 LED 太阳光模拟器凭借其光谱控制技术与系统稳定性，旨在为钙钛矿/硅（PVK/Si）叠层太阳能电池的研究工作提供可靠的技术支持。 </b></p><h3 style="font-size: 20px; font-weight: bold;">可调光谱技术实现子电池独立表征</h3><p>PVK/Si 双结叠层电池具有独特的光谱响应特性：顶层钙钛矿（PVK）层对可见光敏感，而底层硅（Si）层主要吸收近红外区域（800–1200 nm）的光谱。传统固定光谱光源由于光谱分布不可调，难以独立研究各子电池（sub-cell）的响应情况。SS-LED220 作为一款 A++ 级任意光谱 LED 太阳光模拟器，光谱覆盖范围为 350 nm 至 1200 nm。通过软件独立控制不同波段 LED 光源的强度，可模拟可见光与近红外光的特定比例。这一技术使得“单结特性表征”具备了操作可行性——研究人员可针对顶层或底层进行独立测量，分析叠层效率限制因素，并获取各层光吸收与载流子（Carrier）收集能力的实验数据。</p><h3 style="font-size: 20px; font-weight: bold;">稳态测量应对迟滞效应</h3><p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-30893" src="https://enlitechnology.com/wp-content/uploads/2026/01/Pulsed_vs_SteadyState_Illumination_IV_Hysteresis_Comparison.png.webp" alt="Pulsed_vs_SteadyState_Illumination_IV_Hysteresis_Comparison.png" width="1024" height="536" /></p><p>钙钛矿电池通常存在慢响应特性及明显的迟滞效应（Hysteresis），导致稳态功率输出（SPO）的准确测量存在技术难度。传统脉冲式氙灯的闪光持续时间较短，难以完全捕捉其稳态行为。SS-LED220 具备 A++ 级时间不稳定性（&lt;0.5%），可提供长脉宽、连续且稳定的光照环境。<b>该系统支持光浸润（Light Soaking/MPPT）测量功能及时间序列编程控制，可将光照预处理与 IV 测试相结合。</b>通过约一分钟的慢速 IV 扫描，有助于降低迟滞效应的影响，获取钙钛矿叠层电池更为客观、稳定的输出性能数据。此外，LED 光源寿命较长（&gt;10,000 小时）且光强随时间漂移量低，适用于长期老化测试（Stability Test）及精密 J-V 曲线测量。</p><h3 style="font-size: 20px; font-weight: bold;">可编程光强控制用于载流子动力学研究</h3><p>PVK/Si 双结叠层电池在不同光强下表现出差异化的载流子动力学行为。SS-LED220 可在保持光谱一致的前提下，快速调整光强，范围覆盖低辐照度至高强度（&gt;1 Sun，最高可达 1.5 Sun / 1500 W/m²）。<b>软件支持预设 20 组不同光强进行自动 IV 扫描，同时也支持自定义多阶变光强测量。</b>此功能适用于载流子复合（Recombination）行为、填充因子（FF）损失机制及稳定性衰退动力学的深入研究。</p><h3 style="font-size: 20px; font-weight: bold;">LED 冷光源降低热损伤风险</h3><p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-30896" src="https://enlitechnology.com/wp-content/uploads/2026/01/Xenon_Lamp_vs_LED_Cold_Light_IV_Measurement_Comparison.png.webp" alt="Xenon_Lamp_vs_LED_Cold_Light_IV_Measurement_Comparison.png" width="1024" height="536" /></p><p>传统氙灯光源通常伴随较强的红外辐射，可能引起样品温度升高，进而导致 PVK 层出现热衰退现象及数据偏差。SS-LED220 采用 LED 冷光源方案，有效减少了红外热效应的影响。这种设计对热敏感型钙钛礦材料较为友好，有助于减少因温度引起的材料性能衰退，提升测试数据的置信度。</p><h3 style="font-size: 20px; font-weight: bold;">高光谱匹配度支持效率验证</h3><p>SS-LED220 通过多通道控制实现了 AM1.5G A++ 级光谱匹配度（光谱失配度 &lt;6.25%），适用于双结或多结电池的效率测试与验证。其有效辐照面积大于 220 mm × 220 mm，并达到 A 级辐照度空间不均匀度（&lt;2%）标准，保证了样品受光的均一性。<b>配合 KA Viewer 分析软件，用户可进行理想因子 n、反向饱和电流密度 J<sub>0</sub>、FF 损失分析及二极管模型（Diode model）拟合。IVS-KA6000 软件进一步支持全自动 IV 测量及多通道测试（最高支持 32 通道）。</b></p><h3 style="font-size: 20px; font-weight: bold;">钙钛矿叠层电池研究的专业化工具</h3><p><b>选用 Enlitech SS-LED220，即选择了智能化的科研辅助工具，有助于提升实验数据精度，并有效解决钙钛矿叠层电池测试中的特定技术挑战。</b></p><p><b>欢迎联系 Enlitech，了解 SS-LED220 在 PVK/Si 叠层电池研究领域的应用详情。</b></p>						</div>
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		<p>這篇文章 <a href="https://enlitechsy.com/ss-led220-pvk-si-tandem-cell-characterization-led-solar-simulator/">SS-LED220：高精度光谱调控用于 PVK/Si 叠层电池特性表征</a> 最早出現於 <a href="https://enlitechsy.com">胜焱电子科技-光焱科技 ENLITECH</a>。</p>
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		<title>优于A+标准：光焱科技SS-LED220以A++级光谱匹配度支持叠层电池效能验证</title>
		<link>https://enlitechsy.com/ss-led220-aplus-plus-spectral-match-tandem-perovskite-solar-simulator/</link>
		
		<dc:creator><![CDATA[廖, 婉清]]></dc:creator>
		<pubDate>Thu, 15 Jan 2026 02:33:50 +0000</pubDate>
				<category><![CDATA[LED]]></category>
		<category><![CDATA[太阳光模拟器]]></category>
		<category><![CDATA[文章（简）]]></category>
		<category><![CDATA[New Features]]></category>
		<guid isPermaLink="false">https://enlitechsy.com/?p=8350</guid>

					<description><![CDATA[<p>目录 ﻿优于 A+ 标准：以光谱精度助力科研 – SS-LED220 叠层电池性能验证 光谱匹配度：光伏研究的 [&#8230;]</p>
<p>這篇文章 <a href="https://enlitechsy.com/ss-led220-aplus-plus-spectral-match-tandem-perovskite-solar-simulator/">优于A+标准：光焱科技SS-LED220以A++级光谱匹配度支持叠层电池效能验证</a> 最早出現於 <a href="https://enlitechsy.com">胜焱电子科技-光焱科技 ENLITECH</a>。</p>
]]></description>
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			<h1 class="elementor-heading-title elementor-size-default">优于A+标准：光焱科技SS-LED220以A++级光谱匹配度支持叠层电池效能验证</h1>		</div>
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															<img wpfc-lazyload-disable="true" loading="lazy" decoding="async" width="900" height="382" src="https://enlitechsy.com/wp-content/uploads/2026/01/banner-cn-enlitech-ss-led220-aplus-plus-spectral-match-tandem-perovskite-solar-simulator-.webp" class="attachment-full size-full wp-image-8351" alt="banner-cn-enlitech-ss-led220-aplus-plus-spectral-match-tandem-perovskite-solar-simulator" srcset="https://enlitechsy.com/wp-content/uploads/2026/01/banner-cn-enlitech-ss-led220-aplus-plus-spectral-match-tandem-perovskite-solar-simulator-.webp 900w, https://enlitechsy.com/wp-content/uploads/2026/01/banner-cn-enlitech-ss-led220-aplus-plus-spectral-match-tandem-perovskite-solar-simulator--300x127.webp 300w, https://enlitechsy.com/wp-content/uploads/2026/01/banner-cn-enlitech-ss-led220-aplus-plus-spectral-match-tandem-perovskite-solar-simulator--768x326.webp 768w, https://enlitechsy.com/wp-content/uploads/2026/01/banner-cn-enlitech-ss-led220-aplus-plus-spectral-match-tandem-perovskite-solar-simulator--600x255.webp 600w" sizes="(max-width: 900px) 100vw, 900px" />															</div>
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							<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;"><span data-mce-type="bookmark" style="display: inline-block; width: 0px; overflow: hidden; line-height: 0;" class="mce_SELRES_start">﻿</span><span class="TextRun SCXW16643290 BCX8" lang="ZH-TW" xml:lang="ZH-TW" data-contrast="auto"><span class="NormalTextRun SCXW16643290 BCX8">优于</span></span> A+ 标准：以光谱精度助力科研 – SS-LED220 叠层电池性能验证</h2>
<p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-30499" src="https://enlitechnology.com/wp-content/uploads/2026/01/ss-led220-a-plus-plus-spectral-match-am1-5g.webp" alt="" width="1024" height="536"></p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">光谱匹配度：光伏研究的核心指标</h2>
<p>在太阳能电池领域，尤其是钙钛矿（Perovskites）与多结叠层（Multi-junction tandem）电池等新兴材料研究中，效率纪录的每一次刷新，都离不开高精度的测量基础。光谱匹配度（Spectral match）不单是技术参数，更是决定实验数据可靠性与国际认可度的关键因素。当研究旨在挑战 0.1% 的效率提升时，测试光源的质量将直接影响您对材料特性与结构设计的判断。&nbsp;&nbsp;</p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">A++ 级性能：优于 IEC 标准的严苛表现</h2>
<p><b>光焱科技（Enlitech）SS-LED220 A++ 级任意光谱 LED 太阳光模拟器，专为满足前沿研究对光谱精度的严苛要求而设计。其提供 A++ 级光谱匹配，光谱不匹配度（Spectral mismatch）小于 6.25%，输出光谱高度吻合国际标准 AM1.5G。相比 IEC 60904-9 标准中 A 级的 25% 或 A+ 级的 12.5% 偏差，A++ 级性能为您的研究数据带来更高的数据质量与参考价值。</b></p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">缩小实验室数据与实际应用的差距</h2>
<p>对于光伏研究团队而言，A++ 级光谱匹配意味着测试数据更贴近真实应用场景。通过高度还原真实的太阳光环境，可有效避免因光谱失真导致的开路电压（V<sub>oc</sub>）与短路电流（I<sub>sc</sub>）偏差。无论是发表学术论文、申请专利，还是提交给第三方权威认证机构，高质量的数据都能显著提升结果的可信度。</p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">确保跨实验室的数据一致性</h2>
<p>此外，高光谱匹配有助于确保跨实验室之间的数据一致性。在国际合作日益频繁的科研环境下，若实验结果能与 NREL、HZB、Fraunhofer ISE 等全球知名实验室保持良好的可比性，将有助于促进技术交流与产业合作。</p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">精准评估材料，优化叠层结构</h2>
<p>A++ 级光谱为材料和结构评估提供了坚实的基础。在高效单结和叠层电池研究中，0.1% 或 0.2% 的效率差异至关重要。SS-LED220 能够协助研究人员减少“光源偏差”干扰，更清晰地识别材料或结构设计本身的优势。特别是对于钙钛矿/硅叠层电池，由于顶层和底层子电池对不同波长光的响应机制不同，A++ 级模拟器能帮助团队准确测量各层的 J<sub>sc</sub> 和 V<sub>oc</sub>，并判定限流层（Current-limiting layer）。行业专家指出，LED 稳态太阳光模拟器能为钙钛矿开发者提供所需的测量精度，特别是在两端子（Two-terminal）电池的应用上。</p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">哪些研究团队需要这种等级的光谱精度？</h2>
<p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-30464" src="https://enlitechnology.com/wp-content/uploads/2026/01/ss-led220-ultra-long-lifespan-led-vs-traditional.webp" alt="ss-led220-ultra-long-lifespan-led-vs-traditional" width="1024" height="536"></p>
<ul>
<li><span style="color: #ff6600; font-weight: bold;">高效单结和叠层（如钙钛矿/硅叠层）研究团队：</span> 确保叠层电池顶层和底层之间电流匹配（Current matching）准确性的关键。SS-LED220 的 LED 光源具备光谱可调性，不仅提供 AM1.5G 标准光谱，还支持 AM0、室内、黎明和黄昏等自定义光谱。各光谱段可独立调整，这对于叠层电池通过光谱调节实现子电池的偏置光（Bias light）激发至关重要，从而能分离单个子电池的外部量子效率（EQE）信号。</li>
<li><span style="color: #ff6600; font-weight: bold;">寻求国际认证的团队：</span> 若研究结果需提交给 NREL、JET 或 IEC 等标准实验室进行验证，高光谱匹配可显著降低“送测数据与实验室数据不一致”的风险，助力研究成果获得国际认可。</li>
<li><span style="color: #ff6600; font-weight: bold;">材料与结构优化人员：</span> 专注于新型钙钛矿成分、界面工程、空穴传输层（HTL）或电子传输层（ETL）优化的团队，A++ 级光谱有助于确保效率提升源于“材料本身”的改进，而非受到“光源条件变化”的影响。</li>
<li><span style="color: #ff6600; font-weight: bold;">光谱敏感器件测试团队：</span> 量子点、有机太阳能电池及钙钛矿/有机混合结构对光谱变化非常敏感，使用 A++ 级模拟器可避免因材料受到“错误光谱”激发而导致的结果失真。</li>
</ul>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">全面的光谱范围与测试多样性</h2>
<p><b>光焱科技 SS-LED220 系统光谱覆盖 350 nm 至 1200 nm，涵盖硅基、钙钛矿、有机和量子点材料的大部分研究需求。系统支持选配温控器，便于在不同温度下进行 IV 曲线扫描和参数分析。</b></p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">致力于卓越：您光伏创新的合作伙伴</h2>
<p><b>我们深刻理解您研究的价值，并致力于提供可靠、高效的测试解决方案。若您对光谱精度有严格要求，或正从事高效叠层电池或新型钙钛矿材料的研发，欢迎随时联系光焱科技专业团队，深入了解 SS-LED220 如何为您的科研工作提供助力。我们期待与您携手推动太阳能技术的进步。</b></p>						</div>
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		<p>這篇文章 <a href="https://enlitechsy.com/ss-led220-aplus-plus-spectral-match-tandem-perovskite-solar-simulator/">优于A+标准：光焱科技SS-LED220以A++级光谱匹配度支持叠层电池效能验证</a> 最早出現於 <a href="https://enlitechsy.com">胜焱电子科技-光焱科技 ENLITECH</a>。</p>
]]></content:encoded>
					
		
		
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		<item>
		<title>获第三方认证3A级：光焱科技SS-LED220太阳光模拟器 &#124; A++光谱匹配与高精度测量</title>
		<link>https://enlitechsy.com/ss-led220-third-party-certified-class-3a-solar-simulator-pv-research/</link>
		
		<dc:creator><![CDATA[廖, 婉清]]></dc:creator>
		<pubDate>Mon, 12 Jan 2026 07:08:54 +0000</pubDate>
				<category><![CDATA[LED]]></category>
		<category><![CDATA[太阳光模拟器]]></category>
		<category><![CDATA[文章（简）]]></category>
		<category><![CDATA[New Features]]></category>
		<guid isPermaLink="false">https://enlitechsy.com/?p=8348</guid>

					<description><![CDATA[<p>目录 突破测量壁垒：获第三方权威机构 Class 3A 认证 Enlitech LED 太阳光模拟器 从事光伏 [&#8230;]</p>
<p>這篇文章 <a href="https://enlitechsy.com/ss-led220-third-party-certified-class-3a-solar-simulator-pv-research/">获第三方认证3A级：光焱科技SS-LED220太阳光模拟器 | A++光谱匹配与高精度测量</a> 最早出現於 <a href="https://enlitechsy.com">胜焱电子科技-光焱科技 ENLITECH</a>。</p>
]]></description>
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			<h1 class="elementor-heading-title elementor-size-default">获第三方认证3A级：光焱科技SS-LED220太阳光模拟器 | A++光谱匹配与高精度测量</h1>		</div>
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							<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">突破测量壁垒：获第三方权威机构 Class 3A 认证 Enlitech LED 太阳光模拟器</h2>
<p>从事光伏与光电材料研究的团队深知，设备的精度与数据的可信度，是研究成果能否获得国际认可的关键因素。特别是在探索效率提升与材料创新时，一台性能可靠的太阳光模拟器将直接影响研究进度。<b>Enlitech 的 SS-LED220 太阳光模拟器正是为满足这些高标准要求而设计。</b>该模拟器已取得权威第三方机构的 Class 3A 认证，并达到 A++ 级光谱匹配，为您的研究工作提供有力支持。&nbsp;</p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">专业权威认证：显著提升数据可信度</h2>
<p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-30461" src="https://enlitechnology.com/wp-content/uploads/2026/01/ss-led220-itri-3a-certified-iec60904-9-solar-simulator-research-data.webp" alt="SS-LED220 获第三方权威机构 3A 认证 IEC 60904-9 太阳光模拟器研究数据" width="1024" height="536"></p>
<p>在太阳能电池研究中，设备认证是数据可靠性的基础。当研究成果需要投稿至国际学术期刊或送交权威机构进行效率认证时，数据来源必须经得起严谨的推敲。<b>SS-LED220 太阳光模拟器已获得第三方权威计量机构颁发的 Class 3A 证书</b>，这表明其光谱匹配度 (Spectral match)、辐照空间不均匀度 (Spatial non-uniformity) 以及时间不稳定性 (Temporal instability) 三大核心参数，均符合或优于国际电工委员会 IEC 60904-9 标准中的 A 级要求。</p>
<p>使用经第三方公正机构认证的设备，有助于研究团队获得国际学术期刊与认证组织的认可，降低因设备非标准化而导致数据遭受质疑的风险。SS-LED220 在辐照不均匀度上达到小于 2% 的 Class A 标准，在时间不稳定性方面更达到小于 0.5% 的 A++ 级水平，确保了高度一致的实验条件。对于追求高标准研究的团队而言，这是重要的硬件基础设施。</p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">A++ 级光谱匹配：实验精度迈向新台阶</h2>
<p>SS-LED220 太阳光模拟器的另一大技术优势在于其 A++ 级的光谱匹配能力。这意味着其输出光谱高度贴合标准太阳光谱 (AM1.5G)，失配偏差低于 6.25%。IEC 60904-9 标准对 A++ 级光谱匹配有着严格的规范。</p>
<p>这对您的研究团队有何具体助益？</p>
<p>它能确保您测量到的效率数据，更接近太阳能电池在真实阳光下的实际性能，使研究结果更具参考价值。此外，在与国际领先团队进行测试结果比对时，高度匹配的光谱能确保实验室间数据的高可比性。SS-LED220 的光谱范围覆盖 350 nm 至 1200 nm，涵盖了光伏技术中电池材料的主要吸收区域，有效降低了因光谱偏差导致的开路电压 (V<sub>oc</sub>) 与短路电流 (I<sub>sc</sub>) 误差。在材料或结构优化阶段，这有助于团队更快速、准确地筛选出有效的设计方案。</p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">高稳定性与长时间测试的显著优势</h2>
<p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-30464" src="https://enlitechnology.com/wp-content/uploads/2026/01/ss-led220-ultra-long-lifespan-led-vs-traditional.webp" alt="SS-LED220 长寿命 LED 对比传统光源" width="1024" height="536"></p>
<p>LED 光源具备长寿命与高稳定性的特性。SS-LED220 太阳光模拟器的光源寿命平均超过 10,000 小时，期间无需更换灯泡。这与传统光源典型的 1,000 小时寿命形成鲜明对比，有助于降低维护成本与设备停机时间。</p>
<p>这种长效稳定性对于进行光伏器件的老化与稳定性测试 (ISOS 协议)、长时间最大功率点追踪 (MPP tracking) 或重复性测试至关重要。SS-LED220 能在长时间内维持一致的光照条件，让您的结果更能反映太阳能电池实际的耐用度与可靠性。对于像钙钛矿电池这类对光照稳定性要求极高的材料，连续且稳定的光源是准确测量稳态功率输出 (SPO) 的关键。SS-LED220 支持自动光强测试，可精准控制从 10% 到 100% 的输出而不改变光谱，并可配置 20 组不同光强进行自动 IV 扫描与参数分析。此外，它还能执行序列编程控制，集成光浸润 (Light-soaking) 处理与 IV 测试，这是钙鈦矿电池测量的重要功能。</p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">助力前沿研究与国际产学研合作</h2>
<p>拥有一台获第三方权威机构 Class 3A 认证且具备 A++ 光谱匹配的太阳光模拟器，往往是研究团队迈向国际合作、产学研合作或申请政府项目的重要基础。当您的实验室能提供符合国际标准的测试数据时，提交给美国国家可再生能源实验室 (NREL) 或德国弗劳恩霍夫太阳能系统研究所 (Fraunhofer ISE) 等效率认证机构的数据将更容易被采纳。</p>
<p>在参与政府招标或大型研发项目时，拥有权威认证的设备是技术实力的有力证明。行业伙伴在寻求合作对象时，也会优先考虑具备标准化设备与可靠测试能力的团队。<b>SS-LED220 不仅在硬件上符合标准，其配套的 IVS-KA6000 软件系统支持全自动电流-电压特性测量 (IV 曲线)，并输出 Python 可读的高密度数据库格式</b>，提供极大的数据处理灵活性，是现代化研究的高效工具。</p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">适用的研究团队类型</h2>
<p>SS-LED220 太阳光模拟器特别适用于以下类型的研究团队：</p>
<ul>
<li><span style="color: #ff6600; font-weight: bold;">高效率单结或叠层电池 (Perovskite/Si Tandem) 研究团队：</span>这类前沿研究需要极高的光谱匹配精度与稳定性来验证细微的效率提升。SS-LED220 提供包括 AM1.5G 与 AM0 在内的标准光谱，并支持自定义光谱，其 A++ 级光谱与稳定性高度契合叠层电池测试需求。</li>
<li><span style="color: #ff6600; font-weight: bold;">专注于材料与结构优化的团队：</span>光谱的一致性对于精确比较不同配方或工艺参数带来的差异至关重要，能有效指导材料开发方向。</li>
<li><span style="color: #ff6600; font-weight: bold;">准备进行国际认证或发表高影响因子期刊的团队：</span>经认证的标准化设备提供了数据可信度的重要保障，提升论文的说服力与录用率。</li>
<li><span style="color: #ff6600; font-weight: bold;">承担政府项目或企业委托的团队：</span>在这些合作项目中，经认证的设备往往是技术规格与审查的重要门槛，为项目提供坚实的技术支撑。</li>
<li><span style="color: #ff6600; font-weight: bold;">需要多通道测试的团队：</span>SS-LED220 可搭配自动多路复用器进行测试，标准 8 通道并可扩展至最多 32 通道，显著提升实验效率。</li>
</ul>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">结论</h2>
<p>综上所述，<b>SS-LED220 太阳光模拟器不仅是一台设备，它是您科研道路上的有力后盾，确保数据权威性、提升实验精度并加速成果产出。</b>其认证标准与优异性能，让您的研究能立足于更坚实的基础之上，迎接未来的挑战。</p>
<p><b>立即联系我们，深入了解 SS-LED220 太阳光模拟器如何满足您的科研需求。</b></p>						</div>
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		<p>這篇文章 <a href="https://enlitechsy.com/ss-led220-third-party-certified-class-3a-solar-simulator-pv-research/">获第三方认证3A级：光焱科技SS-LED220太阳光模拟器 | A++光谱匹配与高精度测量</a> 最早出現於 <a href="https://enlitechsy.com">胜焱电子科技-光焱科技 ENLITECH</a>。</p>
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		<title>A++级稳定性，0-100%光强可调：光焱科技SS-LED220支持老化测试研究</title>
		<link>https://enlitechsy.com/stable-led-solar-simulator-aging-stability-ss-led220/</link>
		
		<dc:creator><![CDATA[廖, 婉清]]></dc:creator>
		<pubDate>Fri, 09 Jan 2026 06:07:02 +0000</pubDate>
				<category><![CDATA[LED]]></category>
		<category><![CDATA[太阳光模拟器]]></category>
		<category><![CDATA[文章（简）]]></category>
		<category><![CDATA[New Features]]></category>
		<guid isPermaLink="false">https://enlitechsy.com/?p=8346</guid>

					<description><![CDATA[<p>目录 可编程光强，灵活老化模拟：光焱科技SS-LED220太阳光模拟器应用于变因控制 当您的研究需要精准、长期 [&#8230;]</p>
<p>這篇文章 <a href="https://enlitechsy.com/stable-led-solar-simulator-aging-stability-ss-led220/">A++级稳定性，0-100%光强可调：光焱科技SS-LED220支持老化测试研究</a> 最早出現於 <a href="https://enlitechsy.com">胜焱电子科技-光焱科技 ENLITECH</a>。</p>
]]></description>
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			<h1 class="elementor-heading-title elementor-size-default">A++级稳定性，0-100%光强可调：光焱科技SS-LED220支持老化测试研究</h1>		</div>
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															<img wpfc-lazyload-disable="true" loading="lazy" decoding="async" width="900" height="383" src="https://enlitechsy.com/wp-content/uploads/2026/01/banner-programmable-led-solar-simulator-aging-stability-ss-led220.webp" class="attachment-full size-full wp-image-8347" alt="banner-programmable-led-solar-simulator-aging-stability-ss-led220" srcset="https://enlitechsy.com/wp-content/uploads/2026/01/banner-programmable-led-solar-simulator-aging-stability-ss-led220.webp 900w, https://enlitechsy.com/wp-content/uploads/2026/01/banner-programmable-led-solar-simulator-aging-stability-ss-led220-300x128.webp 300w, https://enlitechsy.com/wp-content/uploads/2026/01/banner-programmable-led-solar-simulator-aging-stability-ss-led220-768x327.webp 768w, https://enlitechsy.com/wp-content/uploads/2026/01/banner-programmable-led-solar-simulator-aging-stability-ss-led220-600x255.webp 600w" sizes="(max-width: 900px) 100vw, 900px" />															</div>
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							<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">可编程光强，灵活老化模拟：光焱科技SS-LED220太阳光模拟器应用于变因控制</h2>
<p>当您的研究需要精准、长期的太阳光模拟，尤其是在老化测试 (Aging Test) 或稳定性研究 (Stability Study，如遵循国际太阳能标准协议 ISOS protocols) 时，光源的稳定性与持续性会影响实验结果的可靠度。传统光源的限制，让许多研究团队面临数据判读模糊与实验中断的困扰。</p>
<p><b>LED太阳光模拟器，以其技术优势，有助于解决长期照射实验中的相关问题。</b>它提供优异的长期光输出稳定性。在老化测试中，如果光强或光谱随时间漂移，研究人员很难判断材料的劣化是来自器件本身，还是光源不稳定。LED模拟器保持长期光强与光谱稳定，有助于提升数据的重现性与可信度。<b>我们的SS-LED220型号，其时间不稳定性 (Temporal Instability) 小于0.5%，达到A++级标准。Enlitech的LED模拟器，其光照稳定性优于0.1%，为A+类。</b>在数小时到数万小时的测试中，这样的稳定性有助于为数据提供稳定的基础。&nbsp;</p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">长寿命与低维护成本优势</h2>
<p>LED光源具有长寿命与低维护成本的优势。传统光源，可能因高电压高电流冲击导致灯丝老化、效率降低、波长漂移，需要频繁更换灯泡与校正。这不仅增加维护成本，更可能造成实验中断。相较之下，LED光源的平均使用寿命可达10,000小时以上，特殊应用下更能提供30,000至50,000小时的持续辐照。这代表着无灯泡更换需求，在长期老化实验中，模拟器可以连续稳定照射，减少中断与维护干扰。研究团队可以进行1,000小时甚至更长时间的测试，有助于降低设备整体拥有成本 (Total Cost of Ownership, TCO)。</p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">可编程光强的灵活性，支持多场景老化条件</h2>
<p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-30417" src="https://enlitechnology.com/wp-content/uploads/2026/01/ss-led220-led-vs-traditional-light-source-long-lifespan-low-maintenance.webp" alt="ss-led220-led-vs-traditional-light-source-long-lifespan-low-maintenance" width="1351" height="736"></p>
<p>此外，LED模拟器具备可编程光强的灵活性，能支持多场景老化条件。老化测试常需要模拟不同照度条件，例如低光、强光加速老化或循环变化光照。<b>我们的SS-LED220系统，可通过软件设置0%至100%光强输出控制，并支持自动光强测试，在不改变光谱的情况下调整光强。</b>这让您能程序化设定光强变化，实现恒定光照老化（用于稳定性评估）、加速老化（以高倍光强快速观察退化机制）、以及光照循环（模拟日夜变化或动态应力测试）。这种灵活性让研究人员能更全面地探索材料在不同光照环境下的退化行为。</p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">光谱精准可控，有效避免额外干扰</h2>
<p>同时，LED光源支持光谱精准可控，有效避免额外干扰。某些太阳能电池材料，如钙钛矿 (Perovskite)，对红外热敏感。若光源带有过多杂光，可能加速降解，导致数据失真。LED光源的发光原理是电致发光，其发光波长与材料相关，且单色性强，光衰不会改变输出波长。通过多个光谱段的LED拼接拟合太阳光，可以实现光谱干净且可控。<b>例如SS-LED220的光谱匹配度 (Spectral Mismatch) 小于6.25%，达到A++级，并可自定义光谱，从AM1.5G到AM0，甚至室内、清晨、黄昏等不同条件。每个光谱段均可独立调节控制。</b>这能避免不必要的红外 (Infrared, IR) 过热，让研究团队获得光老化数据。</p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">支持与温湿控制系统整合</h2>
<p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-30420" src="https://enlitechnology.com/wp-content/uploads/2026/01/led-source-integration-isos-aging-tests-environmental-chamber-iv-curves.webp" alt="led-source-integration-isos-aging-tests-environmental-chamber-iv-curves" width="1126" height="614"></p>
<p>LED光源的特性使其适合与温湿控制系统整合。国际太阳能标准协议 (ISOS protocols) 中的老化测试，往往需要搭配温度或湿度控制箱，以模拟实际环境。LED光源是冷光源，发热量小，且体积可模块化。这使得它更容易与环境箱或手套箱 (Glove box) 整合，不会因过度发热影响测试环境控制，有助于维持实验条件的精确性与稳定性。<b>我们的LED模拟器也支持选配温控器，能在不同温度下进行IV曲线 (Current-Voltage curve) 扫描与参数分析。</b></p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">综合优势总结</h2>
<p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-30167" src="https://enlitechnology.com/wp-content/uploads/2025/12/SS-LED_Feature_Promotion_en_5.webp" alt="SS-LED_Feature_Promotion_en_5" width="1080" height="500"></p>
<p>综上所述，对于需要长时间照射模拟光的研究团队，LED太阳光模拟器的优势包括：长期输出高稳定性、长寿命与低维护成本、光强编程灵活支持多种老化测试场景、光谱精准可控、以及低发热易整合适合环境控制测试等特点。</p>
<p><b>我们了解您的研究需求，并致力于提供可靠、高效的测试方案。如果您正在寻找能够为老化测试或稳定性研究提供持久且稳定光源的解决方案，欢迎随时联系我们的专业团队，进一步了解我们的LED太阳光模拟器如何支持您的特定研究需求。</b></p>						</div>
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		<p>這篇文章 <a href="https://enlitechsy.com/stable-led-solar-simulator-aging-stability-ss-led220/">A++级稳定性，0-100%光强可调：光焱科技SS-LED220支持老化测试研究</a> 最早出現於 <a href="https://enlitechsy.com">胜焱电子科技-光焱科技 ENLITECH</a>。</p>
]]></content:encoded>
					
		
		
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		<title>SS-LED220 A++级LED太阳光模拟器｜钙钛矿/硅叠层电池研究应</title>
		<link>https://enlitechsy.com/ss-led220-pvk-si-tandem-solar-simulator/</link>
		
		<dc:creator><![CDATA[廖, 婉清]]></dc:creator>
		<pubDate>Thu, 08 Jan 2026 08:59:22 +0000</pubDate>
				<category><![CDATA[LED]]></category>
		<category><![CDATA[太阳光模拟器]]></category>
		<category><![CDATA[文章（简）]]></category>
		<category><![CDATA[New Features]]></category>
		<guid isPermaLink="false">https://enlitechsy.com/?p=8344</guid>

					<description><![CDATA[<p>目录 SS-LED220：适用于 PVK/Si 叠层研究的光谱解决方案 在钙钛矿/硅（PVK/Si）叠层太阳能 [&#8230;]</p>
<p>這篇文章 <a href="https://enlitechsy.com/ss-led220-pvk-si-tandem-solar-simulator/">SS-LED220 A++级LED太阳光模拟器｜钙钛矿/硅叠层电池研究应</a> 最早出現於 <a href="https://enlitechsy.com">胜焱电子科技-光焱科技 ENLITECH</a>。</p>
]]></description>
										<content:encoded><![CDATA[		<div data-elementor-type="wp-post" data-elementor-id="8344" class="elementor elementor-8344" data-elementor-post-type="post">
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			<h1 class="elementor-heading-title elementor-size-default">SS-LED220 A++级LED太阳光模拟器｜钙钛矿/硅叠层电池研究应</h1>		</div>
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															<img wpfc-lazyload-disable="true" loading="lazy" decoding="async" width="900" height="383" src="https://enlitechsy.com/wp-content/uploads/2026/01/banner-ss-led220-precision-spectrum-perovskite-silicon-tandem-research.webp" class="attachment-full size-full wp-image-8345" alt="banner-ss-led220-precision-spectrum-perovskite-silicon-tandem-research" srcset="https://enlitechsy.com/wp-content/uploads/2026/01/banner-ss-led220-precision-spectrum-perovskite-silicon-tandem-research.webp 900w, https://enlitechsy.com/wp-content/uploads/2026/01/banner-ss-led220-precision-spectrum-perovskite-silicon-tandem-research-300x128.webp 300w, https://enlitechsy.com/wp-content/uploads/2026/01/banner-ss-led220-precision-spectrum-perovskite-silicon-tandem-research-768x327.webp 768w, https://enlitechsy.com/wp-content/uploads/2026/01/banner-ss-led220-precision-spectrum-perovskite-silicon-tandem-research-600x255.webp 600w" sizes="(max-width: 900px) 100vw, 900px" />															</div>
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							<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">SS-LED220：适用于 PVK/Si 叠层研究的光谱解决方案</h2>
<p>在钙钛矿/硅（PVK/Si）叠层太阳能电池的研究中，您可能正处理光谱响应的复杂性，或是努力确保长时间测试的稳定性。PVK/Si 双结电池的上层钙钛矿（PVK）对可见光敏感，下层晶硅（Si）主要吸收近红外区段（800–1200 nm）。</p>
<p>传统太阳光模拟器难以有效分离各子电池响应，钙钛矿层也常面临热降解挑战。<b>光焱科技的 SS-LED220 A++ 级可调光谱 LED 太阳光模拟器针对这些核心挑战而设计，为您的 PVK/Si 叠层太阳能电池研究提供测量解决方案。</b></p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">A++ 级可调光谱：从可见光到近红外的有效控制</h2>
<p><b>SS-LED220 模拟器具备 A++ 级可调光谱能力，光谱范围涵盖 350 nm 至 1200 nm。</b>您可以通过软件独立调整不同波段 LED 光源的强度，模拟可见光与近红外区域的太阳光比例。这使您能够进行单结表征。例如，您可以只测量上层 PVK 或下层 Si 的响应，分析叠层效率瓶颈，深入了解各层的光吸收与载流子收集能力。光谱拼接与拟合方法提供可调整的光谱精度，超过 IEC 60904-9 的 A+ 级标准。</p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">时间稳定性 &lt;0.5%：应对钙钛矿器件的迟滞效应</h2>
<p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-30387" src="https://enlitechnology.com/wp-content/uploads/2026/01/ss-led220-led-solar-simulator-stability-multi-intensity-iv-testing.webp" alt="ss-led220-led-solar-simulator-stability-multi-intensity-iv-testing" width="1351" height="736"></p>
<p>钙钛矿太阳能电池由于其载流子动力学特性，经常表现出较慢的时间响应和迟滞效应。测量稳态功率输出（SPO）是一项挑战。<b>SS-LED220 具有 A++ 级的时间不稳定性（&lt;0.5%）。它提供长效、连续且稳定的照明，光强度随时间的漂移低。</b>我们的模拟器也支持光浸润（MPPT）测量功能和时序编程控制。您可以集成预光浸润处理后进行 IV 测试。通过约一分钟的慢速 IV 曲线测量，您能有效应对迟滞效应，获得叠层太阳能电池的输出性能数据。</p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">可变光强测试：探索不同条件下的载流子动力学</h2>
<p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-30384" src="https://enlitechnology.com/wp-content/uploads/2026/01/ss-led220-arbitrary-spectrum-single-junction-scanning-tandem-cell.webp" alt="ss-led220-arbitrary-spectrum-single-junction-scanning-tandem-cell" width="1351" height="736"></p>
<p>PVK/Si 双结电池在不同光强下展现出不同的载流子动力学。<b>SS-LED220 可以在不改变光谱的情况下，快速程序化控制光强，从低照度到高强度（可达 1.5 Sun，即 1500 W/m²）。</b>软件可设置 20 组不同光强度组合，自动进行 IV 扫描与 6 项参数分析。它也支持自定义多段可变光强测量。这有助于研究载流子复合行为、填充因数（FF）损失机制，以及稳定性退化动力学。此外，SS-LED220 采用 LED 冷光源，避免过度的红外热效应，适合热敏感的钙钛矿层。&nbsp;</p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">大面积照光与完整的分析功能</h2>
<p><b>本模拟器提供 &gt;220 mm × 220 mm 的照光面积，辐照度空间不均匀性达到 A 级（&lt;2%），有助于样品获得一致的照明。SS-LED220 的光谱匹配度为 AM1.5G A++ 级（&lt;6.25% 不匹配度）。</b>它适合双结或多结电池的效率认证应用。KA Viewer 软件提供理想因子 n（Ideal Factor）、逆向饱和电流密度 J<sub>0</sub>、FF 损耗测量分析，以及二极管模型拟合功能。IVS-KA6000 软件支持全自动 IV 测量、多通道测试（可达 32 通道），以及正向／逆向扫描功能。</p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">SS-LED220 在 PVK/Si 叠层研究中的应用优势</h2>
<p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-29426" src="https://enlitechnology.com/wp-content/uploads/2025/11/SS-LED_Feature_Promotion_en_1.webp" alt="SS-LED_Feature_Promotion_en_1" width="1080" height="500"></p>
<p><b>光焱科技的 SS-LED220 模拟器，凭借其光谱可调性、时间稳定性、冷光源设计，以及对单结／双结测试的支持，可帮助您的研究团队分析双结电池的限制机制，促进效率提升与可靠性验证。</b></p>
<p>联系光焱科技，了解 SS-LED220 在 PVK/Si 叠层太阳能电池研究中的应用价值。</p>						</div>
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		<p>這篇文章 <a href="https://enlitechsy.com/ss-led220-pvk-si-tandem-solar-simulator/">SS-LED220 A++级LED太阳光模拟器｜钙钛矿/硅叠层电池研究应</a> 最早出現於 <a href="https://enlitechsy.com">胜焱电子科技-光焱科技 ENLITECH</a>。</p>
]]></content:encoded>
					
		
		
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		<item>
		<title>上万小时连续测试：光焱科技 SS-LED220 长寿命 LED 用于老化研究</title>
		<link>https://enlitechsy.com/worry-free-10000-hour-testing-enlitech-ss-led220-ultra-long-lifetime-led-accelerates-aging-research/</link>
		
		<dc:creator><![CDATA[廖, 婉清]]></dc:creator>
		<pubDate>Fri, 02 Jan 2026 02:32:25 +0000</pubDate>
				<category><![CDATA[LED]]></category>
		<category><![CDATA[太阳光模拟器]]></category>
		<category><![CDATA[文章（简）]]></category>
		<category><![CDATA[New Features]]></category>
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					<description><![CDATA[<p>目录 太阳能电池研究中长期稳定性测试的挑战 在太阳能电池的研发中,特别是新兴的钙钛矿和叠层太阳能电池,长期老化 [&#8230;]</p>
<p>這篇文章 <a href="https://enlitechsy.com/worry-free-10000-hour-testing-enlitech-ss-led220-ultra-long-lifetime-led-accelerates-aging-research/">上万小时连续测试：光焱科技 SS-LED220 长寿命 LED 用于老化研究</a> 最早出現於 <a href="https://enlitechsy.com">胜焱电子科技-光焱科技 ENLITECH</a>。</p>
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			<h1 class="elementor-heading-title elementor-size-default">上万小时连续测试：光焱科技 SS-LED220 长寿命 LED 用于老化研究</h1>		</div>
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							<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">太阳能电池研究中长期稳定性测试的挑战</h2><p>在太阳能电池的研发中,特别是新兴的钙钛矿和叠层太阳能电池,长期老化测试和稳定性研究至关重要。这些测试通常需要符合ISOS协议,并涉及长时间的模拟光照射。然而,如果太阳光模拟器在实验期间光强或光谱输出稳定性不足,研究团队将难以判断材料的劣化究竟是来自器件本身,还是光源的不稳定性。这会影响数据的可重复性和可信度。</p><p>对于钙钛矿太阳能电池和叠层器件,亚稳态行为和迟滞效应带来了额外的挑战。研究人员需要可靠的测试设备,能够在持续数百甚至数千小时的实验中保持一致的条件。传统光源常常存在光谱漂移问题,需要频繁重新校准,这会中断关键的长时间测试并给实验结果带来不确定性。 </p><h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">SS-LED220:具有优异稳定性的LED技术</h2><p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-30167" src="https://enlitechnology.com/wp-content/uploads/2025/12/SS-LED_Feature_Promotion_en_5.webp" alt="" width="1080" height="500" /></p><p><b>光焱科技Enlitech的SS-LED220太阳光模拟器专门针对这些核心挑战而设计。它达到了A++级时间不稳定性性能,数值低于0.5%,这意味着光源能在较长时间内保持光强和光谱输出的稳定性。SS-LED220的A++级光谱匹配性能确保在持续数百甚至数千小时的老化测试期间,研究人员无需担心光源漂移影响实验数据。</b></p><p>其根本优势在于LED的电致发光原理作为固态光源。与传统光源不同,LED在老化过程中不会改变输出波长。在精确控制的电压、电流和温度条件下工作,LED光源避免了传统灯管固有的光谱漂移问题。这一特性确保您的数据在整个长期测试过程中保持真实可靠。</p><p>此外,SS-LED220采用LED光源,平均寿命超过10,000小时——明显长于传统灯管寿命。这使得可以进行连续的长周期测试,无需频繁更换光源或重新校准,大幅降低了实验中断风险和后续维护成本。对于符合ISOS协议的稳定性测试,能够可靠地进行超过1000小时的连续测试尤为重要。</p><h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">可编程光强控制,满足多样化测试方案</h2><p>老化测试经常需要模拟各种辐照条件,包括恒定光照、高光强加速老化或循环光照模式。SS-LED220具有可编程的光强变化功能。它可以在不改变光谱的情况下控制0%到100%的光强输出。通过特殊的光强调节设计,它可以产生100种光强变化,调节精度达1%,实现连续调节而无需单独加载参数文件。</p><p>这种灵活性使您能够在恒定光照下实施稳定性评估,或采用高光强加速老化来快速观察材料的降解机制。您还可以模拟昼夜循环或动态应力测试,为您的研究应用提供出色的通用性和多样性。</p><h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">针对新型光伏技术优化的光谱性能</h2><p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-29429" src="https://enlitechnology.com/wp-content/uploads/2025/11/SS-LED_Feature_Promotion_en_4.webp" alt="" width="1080" height="500" /></p><p>对于钙钛矿等新兴太阳能电池材料,我们了解其对红外加热可能较为敏感的特性。SS-LED220的LED光源提供洁净可控的光谱输出。它达到AM1.5G A++级光谱匹配,失配度低于6.25%,有效避免了不必要的红外过热效应。这减少了杂散光谱对样品的干扰,使研究团队能够获得更纯粹的光老化数据。</p><p>由于LED光谱是通过拼接多个LED光谱段组装而成,其精度可调。<b>SS-LED220还支持自定义光谱功能,允许精确调整光谱——这对于研究不同波长对叠层电池各子层的影响至关重要。它符合IEC 60904-9等国际标准。</b></p><h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">环境集成与紧凑设计</h2><p>ISOS标准的老化测试通常需要与温度/湿度控制箱集成,以模拟实际环境条件。<b>SS-LED220的LED架构便于与环境箱或手套箱集成,并提供相应的温度和湿度控制模块。因此,您可以更顺利地执行ISOS标准下的老化测试。</b></p><p>其紧凑的灯箱设计,尺寸为326mm(长) × 326mm(宽) × 830mm(高),特别适合集成在空间有限的实验室环境中。这种紧凑的占地面积不会影响性能,对于在受限设施布局中工作的研究人员来说较为适合。</p><h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">用于钙钛矿表征的软件功能</h2><p>钙钛矿电池通常表现出亚稳态行为或迟滞效应。<b>SS-LED220的IVS-KA6000软件支持光浸润测量功能和时序编程控制。您可以先进行预光浸润处理,通常需要2到10分钟让器件达到稳态条件,然后进行约一分钟的慢速IV曲线测量。</b></p><p>这种方法有效克服了迟滞效应,确保获取叠层电池真实稳定的输出性能数据。我们的软件还可以输出Python可读的高密度数据库格式,便于进行深入的数据分析。此外,KA Viewer软件提供包括理想因子(n)和叠层计算器在内的分析功能,帮助您更深入地分析叠层电池特性。</p><h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">大面积均匀性,适合多样品测试</h2><p><b>SS-LED220模拟器提供&gt;220 mm × 220 mm的较大照明面积,辐照空间不均匀性为A级(&lt;2%)。这确保在测试大尺寸样品或多个PVK/Si叠层样品时,每个位置都能获得一致的光照,提高实验结果的可靠性。</b></p><p>这种均匀性对于同时筛选多个器件或表征大面积组件特别有价值,在保持数据质量的同时提高研究效率。</p><h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">长期稳定性研究的综合解决方案</h2><p><b>SS-LED220太阳光模拟器通过其光输出稳定性、长光源寿命、可编程光强控制、光谱精度、与环境控制系统的集成性,以及专门针对钙钛矿和叠层电池设计的测试功能,有助于提升太阳能电池长期稳定性研究的效率和数据可信度。这解决了您在长时间模拟光照射测试中可能遇到的许多问题。</b></p><p>我们诚挚邀请您联系我们,深入了解SS-LED220模拟器如何为您的太阳能电池长期稳定性研究带来进展。</p>						</div>
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		<p>這篇文章 <a href="https://enlitechsy.com/worry-free-10000-hour-testing-enlitech-ss-led220-ultra-long-lifetime-led-accelerates-aging-research/">上万小时连续测试：光焱科技 SS-LED220 长寿命 LED 用于老化研究</a> 最早出現於 <a href="https://enlitechsy.com">胜焱电子科技-光焱科技 ENLITECH</a>。</p>
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		<title>PLQY与QFLS深入解析：预测光伏材料 iVoc 与 Pseudo J–V 极限</title>
		<link>https://enlitechsy.com/plqy-qfls-ivoc-pseudo-jv-photovoltaic-materials/</link>
		
		<dc:creator><![CDATA[廖, 婉清]]></dc:creator>
		<pubDate>Fri, 18 Apr 2025 09:31:56 +0000</pubDate>
				<category><![CDATA[太阳能电池]]></category>
		<category><![CDATA[文章（简）]]></category>
		<category><![CDATA[精准测量]]></category>
		<category><![CDATA[QFLS]]></category>
		<guid isPermaLink="false">https://enlitechsy.com/?p=8325</guid>

					<description><![CDATA[<p>目录 引言 随着新颖光伏材料（如钙钛矿太阳能电池、有机光伏(OPV)）的快速崛起，如何在早期研究阶段即评估材料 [&#8230;]</p>
<p>這篇文章 <a href="https://enlitechsy.com/plqy-qfls-ivoc-pseudo-jv-photovoltaic-materials/">PLQY与QFLS深入解析：预测光伏材料 iVoc 与 Pseudo J–V 极限</a> 最早出現於 <a href="https://enlitechsy.com">胜焱电子科技-光焱科技 ENLITECH</a>。</p>
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			<h1 class="elementor-heading-title elementor-size-default">PLQY与QFLS深入解析：预测光伏材料 iVoc 与 Pseudo J–V 极限</h1>		</div>
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															<img wpfc-lazyload-disable="true" loading="lazy" decoding="async" width="900" height="383" src="https://enlitechsy.com/wp-content/uploads/2025/04/Banner-cn-plqy-qfls-ivoc-pseudo-jv-photovoltaic-materials.webp" class="attachment-full size-full wp-image-8326" alt="Banner-cn-plqy-qfls-ivoc-pseudo-jv-photovoltaic-materials" srcset="https://enlitechsy.com/wp-content/uploads/2025/04/Banner-cn-plqy-qfls-ivoc-pseudo-jv-photovoltaic-materials.webp 900w, https://enlitechsy.com/wp-content/uploads/2025/04/Banner-cn-plqy-qfls-ivoc-pseudo-jv-photovoltaic-materials-300x128.webp 300w, https://enlitechsy.com/wp-content/uploads/2025/04/Banner-cn-plqy-qfls-ivoc-pseudo-jv-photovoltaic-materials-768x327.webp 768w, https://enlitechsy.com/wp-content/uploads/2025/04/Banner-cn-plqy-qfls-ivoc-pseudo-jv-photovoltaic-materials-600x255.webp 600w" sizes="(max-width: 900px) 100vw, 900px" />															</div>
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							<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">引言</h2><p>随着新颖光伏材料（如钙钛矿太阳能电池、有机光伏(OPV)）的快速崛起，如何在早期研究阶段即评估材料的理论极限性能成为各研究机构与产业界的重要议题。传统评估太阳能电池性能的方式是制作完整器件并测量其J-V曲线，然而，此方式往往受到器件制备步骤、接口缺陷、接面质量、电阻损耗、封装稳定度等多重因素影响，无法快速与纯粹地探究材料本质之潜势。</p><p>近年来，一种以光致发光(Photoluminescence，PL)测量为基础，透过取得光致发光量子产率(PLQY)并推演准费米能级分裂(Quasi-Fermi Level Splitting， QFLS)的方法，已逐渐成为新型太阳能材料研究的重要工具。QFLS与预测出的iVoc（implied Open-Circuit Voltage）及pseudo J-V曲线，可作为材料内在极限性能的快速指针，有助于在材料研发初期识别具高潜力的组合，并为后续器件优化提供方向。</p><p>本篇文章将首先介绍相关学术理论基础、PLQY与QFLS之间的推导方法、QFLS对iVoc及pseudo J-V预测的意义。同时，我们将讨论优异的QFLS测量设备如何透过精准的光学与电学设计，协助研究者快速取得可靠的QFLS数据，并在光强动态范围、检测灵敏度、波长适用范围与数据重现性等方面展现独特优势。 </p><h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">学术理论基础——从PLQY到QFLS与iVoc</h2><h3 style="font-size: 20px; font-weight: bold;">1. PLQY 与半导体载子复合机制深入探讨</h3><p>在太阳能电池材料中，光子入射后产生电子-电洞对（e-h pairs）是光电转换的基础。这些载子在基态与激发态之间的分布，可藉由费米-狄拉克分布（Fermi-Dirac distribution）及详细平衡（Detailed Balance）理论进行描述。详细平衡理论假设在稳态条件下，所有激发和弛豫过程均达到平衡，这对于理解载子行为非常重要。</p><p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-20184" src="https://enlitechnology.com/wp-content/uploads/2025/04/PLQY-fig1b.webp" alt="PLQY-fig1b" width="502" height="450" /></p><p>图片来源：<a href="https://www.researchgate.net/figure/a-Normalized-absorption-and-emission-spectra-and-b-results-for-the-PLQY-of-the_fig1_356948534">https://www.researchgate.net/figure/a-Normalized-absorption-and-emission-spectra-and-b-results-for-the-PLQY-of-the_fig1_356948534</a></p><p>载子复合机制主要分为辐射性复合（Radiative Recombination）与非辐射性复合（Non-radiative Recombination）两大类。</p><p>辐射性复合是指电子与电洞复合时释放出光子的过程，其速率受材料的基本能隙与辐射特性所限制。辐射性复合可由以下方程序描述：<br />Rrad = Bnp</p><p><img loading="lazy" decoding="async" class="aligncenter wp-image-20154 size-medium" src="https://enlitechnology.com/wp-content/uploads/2025/04/Rrad_formula-300x119.webp" alt="Rrad_formula" width="300" height="119" /></p><p>其中，Rrad为辐射复合率，B 为辐射复合系数，n 和 p 分别为电子和电洞的浓度。此处的 B 系数通常与材料的本质特性相关。</p><p>此外， Shockley-Read-Hall (SRH) 理论在此也扮演重要角色，SRH 理论指出当材料中存在缺陷或杂质时，载子会被捕捉到这些缺陷态，然后再发生辐射性复合。</p><p>非辐射性复合，则指电子与电洞复合时，能量以热或声子等形式释放，而不产生光子。</p><p>非辐射复合主要由以下几种机制主导：</p><ul><li><span style="color: #ff6600; font-weight: bold;">缺陷态（Dangling bonds， Trap states）：</span> 材料中存在的悬键、晶格缺陷等会形成陷阱态，载子被捕获后会通过多声子发射等非辐射途径复合。这类复合过程可使用 SRH 理论加以描述，其复合率为：<br />RSRH = (np &#8211; ni<sup>2</sup>) / (τp(n+n1) + τn(p+p1))<br /><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-20157" src="https://enlitechnology.com/wp-content/uploads/2025/04/RSRH_formula.webp" alt="RSRH_formula" width="539" height="161" />其中，τn 和 τp 分别为电子和电洞的生命周期，n1 和 p1 为与缺陷态相关的载子浓度。此公式描述了缺陷态如何影响非辐射性复合速率。</li><li><span style="color: #ff6600; font-weight: bold;">俄歇（Auger）复合：</span> 在高载子浓度下，一个电子-电洞对复合时，能量会转移给第三个载子，使其激发到更高的能阶，然后再以非辐射的方式弛豫。Auger 复合的速率与载子浓度的三次方成正比：<br />RAuger = Cnn<sup>2</sup>p + Cpnp<sup>2</sup><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-20151" src="https://enlitechnology.com/wp-content/uploads/2025/04/RAuger_formula.webp" alt="RAuger_formula" width="456" height="114" />其中，Cn 和 Cp 分别为电子和空穴的 Auger 复合系数。在高注入情况下，Auger 复合会成为主要的非辐射复合途径。</li></ul><h3 style="font-size: 20px; font-weight: bold;">PLQY 的定义与量化</h3><p>PLQY 的定义如下：<br />PLQY = Rrad / G</p><p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-20190" src="https://enlitechnology.com/wp-content/uploads/2025/04/PLQY_Rrad_formula.png" alt="PLQY_Rrad_formula" width="148" height="64" />其中，G 为入射光子产生载子的速率。</p><p>更进一步的，PLQY 可以表示为辐射复合率与总复合率的比值：<br />PLQY = Rrad / (Rrad + Rnon-rad)</p><p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-20187" src="https://enlitechnology.com/wp-content/uploads/2025/04/PLQY-Rrad_formula.webp" alt="PLQY-Rrad_formula" width="454" height="127" />其中，Rnon−rad 为非辐射复合速率，包含 SRH 和 Auger 复合等。</p><p>透过测量 PLQY，我们可量化辐射与非辐射复合的相对比例。高 PLQY 值意味着材料中辐射复合通道占优势，非辐射复合通道相对较少。这表明材料质量优异，载子寿命较长，光电转换效率也相对较高。特别是在太阳能电池应用中，高 PLQY 代表着材料具有更高的理论开路电压（Voc）上限潜力，因为较少的非辐射复合损失会带来更高的 Voc。</p><h3 style="font-size: 20px; font-weight: bold;">PLQY 的重要性与应用</h3><ul><li><span style="color: #ff6600; font-weight: bold;">材料质量评估：</span> PLQY 是评估半导体材料质量的重要指针。高 PLQY 代表材料结构缺陷少，能有效转换光能。</li><li><span style="color: #ff6600; font-weight: bold;">器件性能优化：</span> 在太阳能电池、LED 等光电器件中，PLQY 的提升直接关乎器件的效率。因此，通过实验优化材料制备条件，以获得更高的 PLQY 是研究的关键方向。</li><li><span style="color: #ff6600; font-weight: bold;">非辐射损失分析：</span> PLQY 的测量结果可以帮助研究者理解材料中的非辐射损失机制，从而针对性地提出改善材料和器件性能的方案。例如，通过表面钝化、晶格工程等技术可以减少非辐射复合中心，提高 PLQY。</li><li><span style="color: #ff6600; font-weight: bold;">量化分析：</span> 藉由改变激发功率，我们可以得到材料的辐射复合与非辐射复合的相关信息，进一步探讨缺陷态或是其他非辐射损失机制。</li></ul><p>总而言之，PLQY 不仅是衡量发光效率的指标，更是深入理解半导体材料中载子动力学与复合机制的关键工具。对于研究人员来说，掌握 PLQY 的测量与分析方法，是开发高效光电器件和探索新型半导体材料的基础。</p><p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-20175" src="https://enlitechnology.com/wp-content/uploads/2025/04/PLQY_importance-cn.webp" alt="PLQY_importance-cn" width="762" height="452" /></p><h3 style="font-size: 20px; font-weight: bold;">2. 准费米能级分裂（QFLS）理论基础</h3><p>在热平衡状态下且无外加电压时，半导体材料内的电子和电洞处于相同的费米能级（Fermi Level， EF）。</p><p>这表示系统处于热力学平衡，载子分布遵循单一的费米-狄拉克分布。然而，当半导体材料受到光照激发时，会产生过量的电子和电洞，此时电子和电洞不再共享同一费米能级，而是分别建立各自的准费米能级（Quasi-Fermi Levels），分别为电子准费米能级 (EFn) 和电洞准费米能级 (EFp)。</p><p>准费米能级的概念是为了描述非平衡状态下载子分布而引入的。在光激发下，电子和电洞的浓度远离热平衡值，因此无法用单一的费米能级来描述。电子准费米能级 (EFn) 代表着电子系统的化学势，而电洞准费米能级 (EFp) 代表着电洞系统的化学势。两者之间的差值，即准费米能级分裂 (ΔEF)，定义为：<br />ΔEF = EFn &#8211; EFp</p><p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-20142" src="https://enlitechnology.com/wp-content/uploads/2025/04/QFLS-DeltaEF_formula.webp" alt="QFLS-DeltaEF_formula" width="372" height="96" />这个准费米能级分裂 ΔEF 直接关联到半导体材料在光照下的电压响应。</p><p>在理想情况下，一个高效的光伏器件所能达到的开路电压 (Voc) 与 QFLS 密切相关。</p><p><img loading="lazy" decoding="async" class="aligncenter wp-image-20145 size-large" src="https://enlitechnology.com/wp-content/uploads/2025/04/QFLS-fig5-1024x833.webp" alt="QFLS-fig5" width="1024" height="833" />图片来源: <a href="https://www.researchgate.net/figure/Pseudo-JV-and-efficiency-potential-a-Intensity-dependent-quasi-Fermi-level-splitting_fig5_365965562">https://www.researchgate.net/figure/Pseudo-JV-and-efficiency-potential-a-Intensity-dependent-quasi-Fermi-level-splitting_fig5_365965562</a></p><p>然而，当有光照（光激发）时，就像有源源不断的雨水注入这个水库系统。光子激发产生了额外的电子和电洞，这使得我们需要将水库系统区分为两个独立的水库：一个是电子水库（对应电子准费米能级 EFn），另一个是电洞水库（对应电洞准费米能级 EFp）。</p><ul><li><span style="color: #ff6600; font-weight: bold;">费米能级 (EF)：</span> 就像一个「共享水库」，代表着在热平衡状态下，电子和电洞共同的能量水平。水位是静止的，没有能量差。</li><li><span style="color: #ff6600; font-weight: bold;">准费米能级 (EFn 和 EFp)：</span> 就像两个「独立水库」，分别代表着在光照下，电子和电洞各自的能量水平。光照越强，注入的水越多，水库的水位就越高。</li><li><span style="color: #ff6600; font-weight: bold;">准费米能级分裂 (ΔEF=EFn−EFp)：</span> 代表电子水库和电洞水库之间的水位高度差，这个水位差决定了光伏器件能产生多少电压。</li></ul><h3 style="font-size: 20px; font-weight: bold;">QFLS 与开路电压 (Voc) 的关系：电压的「水位差」</h3><p>现在，我们把准费米能级分裂 ΔEF 想象成两个水库之间的水位差。</p><p>电子水库 (EFn) 的水位较高，而电洞水库 (EFp) 的水位较低。当我们让水从高水位流向低水位时（对应载子从电子侧流向电洞侧），就会释放出能量，这个能量就转化为电压。</p><p>理想情况下的开路电压 (Voc，ideal) 近似于这个「水位差」 (ΔEF) 除以电子电荷 (q)，就像计算水力发电时，水头高度对电压的影响:<br />Voc,ideal ≈ ΔEF / q = (EFn &#8211; EFp) / q</p><p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-20160" src="https://enlitechnology.com/wp-content/uploads/2025/04/Voc-ideal_formula.webp" alt="Voc-ideal_formula" width="371" height="110" /></p><h3 style="font-size: 20px; font-weight: bold;">QFLS 与开路电压 (Voc) 的关系：</h3><p>理想情况下的开路电压 (Voc) 近似于准费米能级分裂 (ΔEF) 除以电子电荷 (q)：</p><p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-20163" src="https://enlitechnology.com/wp-content/uploads/2025/04/Voc-ideal_formula_2.webp" alt="Voc-ideal_formula_2" width="421" height="133" />这个关系式源于半导体光伏器件的详细平衡分析（Detailed Balance Analysis），也就是广为人知的 Shockley-Queisser 理论框架。详细平衡理论指出，在稳态条件下，所有入射光子产生的载子必须与所有复合过程所消耗的载子达到平衡。而费米-狄拉克统计则描述了电子和电洞在各能阶的分布情况。</p><p>以下详细说明 QFLS 如何与 Voc 产生关联：</p><ul><li><span style="color: #ff6600; font-weight: bold;">光激发下的载子浓度：</span> 光照下产生过量的电子和电洞，导致电子浓度 (n) 和电洞浓度 (p) 分别远离热平衡值 (n0 和 p0)。</li><li><span style="color: #ff6600; font-weight: bold;">准费米能级的定义：</span> 载子浓度与准费米能级的关系可以由以下方程序描述：<br />n = Nc exp((EFn &#8211; Ec) / (kBT))<br />p = Nv exp((Ev &#8211; EFp) / (kBT))<img loading="lazy" decoding="async" class="aligncenter size-full wp-image-20172" src="https://enlitechnology.com/wp-content/uploads/2025/04/np-Ne-exp_formula.webp" alt="np-Ne-exp_formula" width="422" height="278" />其中，Nc 和 Nv 分别为导带和价带的有效态密度，Ec 和 Ev 分别为导带底和价带顶的能量，kB 为波兹曼常数，T 为温度。</li><li><span style="color: #ff6600; font-weight: bold;">开路条件：</span> 开路条件下，光生电流等于暗电流，即没有净电流流出器件。在此条件下，PN 接面的电压会达到一个稳定的值，这就是开路电压 (Voc)。</li><li><span style="color: #ff6600; font-weight: bold;">与能带弯曲的关联：</span> 准费米能级分裂 ΔEF 与 PN 接面区域的能带弯曲直接相关。在开路条件下，PN 接面的能带会发生弯曲，直到电子和电洞的准费米能级之间的差值等于接面上的电位差，也就是 Voc。</li><li><span style="color: #ff6600; font-weight: bold;">详细平衡的限制：</span> 根据详细平衡原理，光伏器件的开路电压 (Voc) 受辐射复合的限制。当非辐射复合占主导地位时，实际的 Voc 会远低于理想的 Voc 值，因此高 PLQY 材料在理想情况下有较高的 Voc 潜力。</li></ul><h3 style="font-size: 20px; font-weight: bold;">QFLS 的重要性：</h3><ul><li><span style="color: #ff6600; font-weight: bold;">理论上限：</span> QFLS 值越高，代表着在理想接面中有机会获得更高的开路电压 (Voc)。因此，QFLS 是评估光伏材料和器件性能的关键参数。</li><li><span style="color: #ff6600; font-weight: bold;">材料性能评估：</span> QFLS 可以反映材料在光照下的载子分离能力，高的 QFLS 值通常意味着材料具有更好的光电转换性能。</li><li><span style="color: #ff6600; font-weight: bold;">器件设计：</span> 通过调控材料的能带结构和载子浓度，可以有效地提升 QFLS，从而提高器件的效率。例如，高掺杂可以提高载子浓度，但也会增加非辐射复合，因此需要仔细优化。</li><li><span style="color: #ff6600; font-weight: bold;">实验测量：</span> 透过光激发的能谱或电压响应可以测量到材料的 QFLS，藉此评估材料的效能。</li></ul><p>总之，准费米能级分裂（QFLS）是理解非平衡状态下半导体光电响应的关键概念。它与理想开路电压 (iVoc) 有着直接的关联，是衡量光伏材料和器件性能的重要指针。</p><p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-20133" src="https://enlitechnology.com/wp-content/uploads/2025/04/QFLS_explore-cn.webp" alt="QFLS_explore-cn" width="554" height="329" /></p><h3 style="font-size: 20px; font-weight: bold;">3. Pseudo J-V曲线之预测：一个理想化的蓝图</h3><p>我们可以将 Pseudo J-V 曲线比喻成一位「完美的运动员」，他拥有完美的体能，没有伤病，能够发挥出全部的潜力。而实际的器件就像「现实的运动员」，他们可能会受到伤病、疲劳、环境等各种因素的影响，无法达到「完美运动员」的表现。Pseudo J-V 曲线就像是「完美运动员」的成绩单，它给了我们一个明确的目标，让我们知道「现实运动员」可以进步的方向。</p><p>因此也可以把 Pseudo J-V 曲线想象成一个「完美光伏器件」的性能蓝图。它不是我们实际测量到的 J-V 曲线，而是基于材料的内在特性（如 QFLS）和理想化的二极管模型所推导出的理论曲线。这个曲线假设器件没有界面缺陷、没有串联和并联电阻损失，以及没有其他非理想效应。简而言之，它是一个「如果所有条件都完美」的器件性能预测。</p><p>透过将iVoc、理想光生电流和理想化的饱和电流密度(J0)等参数代入，可获得pseudo J-V曲线，用以评估材料之理论极限效能并与实际器件J-V比较，协助研究者辨识实务中损失的来源。</p><h3 style="font-size: 20px; font-weight: bold;">Pseudo J-V 曲线的构建：基于 QFLS 和理想二极管方程式</h3><p>Pseudo J-V 曲线的构建基于以下几个关键要素：</p><p>理想开路电压 (Voc，ideal)： 如前所述，理想开路电压 (Voc，ideal) 与准费米能级分裂 (ΔEF) 有着直接的关联：<br />Voc,ideal ≈ ΔEF / q = (EFn &#8211; EFp) / q</p><p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-20163" src="https://enlitechnology.com/wp-content/uploads/2025/04/Voc-ideal_formula_2.webp" alt="Voc-ideal_formula_2" width="421" height="133" />这个 Voc，ideal 代表了器件在开路条件下，电压的理论上限，是 Pseudo J-V 曲线的起始点。</p><ul><li><span style="color: #ff6600; font-weight: bold;">理想光生电流密度 (Jph，ideal)：</span><br />这代表了在短路条件下，器件能够产生的最大电流密度。在 Pseudo J-V 曲线中，我们假设所有入射光子都产生了可被收集的载子，因此 Jph，ideal 反映了材料的光吸收能力和载子收集效率。<br />在实际情况中，Jph 可以使用吸收系数和入射光谱估计出来。</li><li><span style="color: #ff6600; font-weight: bold;">理想饱和电流密度 (J0)：</span><br />理想饱和电流密度 (J0) 代表了二极管在黑暗条件下，反向偏压时的泄漏电流。在理想二极管模型中，这个电流密度是由材料本身的热平衡载子浓度和复合机制决定的。J 0 可以用以下公式表示：<br />J0 = AeT<sup>2</sup> exp(-(Eg / (kBT)))<img loading="lazy" decoding="async" class="aligncenter size-full wp-image-20166" src="https://enlitechnology.com/wp-content/uploads/2025/04/J0-AeT_formula.webp" alt="J0-AeT_formula" width="453" height="150" />其中，Ae 是 Richardson 常数，T 是绝对温度，Eg 是半导体的能隙，kB 是波兹曼常数。</li><li><span style="color: #ff6600; font-weight: bold;">理想二极管方程式：</span> Pseudo J-V 曲线是基于理想二极管方程式推导出的。理想二极管方程式描述了电流密度 (J) 与电压 (V) 之间的关系：<br />J = J0 * (exp((qV) / (kBT)) &#8211; 1) &#8211; Jph,ideal<img loading="lazy" decoding="async" class="aligncenter size-full wp-image-20169" src="https://enlitechnology.com/wp-content/uploads/2025/04/J-J0_formula.webp" alt="J-J0_formula" width="524" height="119" />这个方程式描述了在理想情况下，光伏器件的电流电压特性，其中 q 是基本电荷，kB 是波兹曼常数，T 是绝对温度。</li></ul><p>藉由将以上三个参数带入理想二极管公式，我们可以得到一条在理想情况下的电流-电压曲线。</p><h3 style="font-size: 20px; font-weight: bold;">Pseudo J-V 曲线的应用：理论与现实的对照</h3><p>Pseudo J-V 曲线的最大价值在于，它可以作为一个基准，让我们评估实际器件性能与理论极限之间的差距。通过比较实际测量的 J-V 曲线与 Pseudo J-V 曲线，我们可以识别出实务中损失的来源：</p><ul><li><span style="color: #ff6600; font-weight: bold;">界面缺陷：</span> 实际器件的界面缺陷会导致非辐射复合，降低 PLQY 和 Voc，使实际 J-V 曲线偏离 Pseudo J-V 曲线。</li><li><span style="color: #ff6600; font-weight: bold;">串联电阻损失：</span> 实际器件中的串联电阻会限制电流的流动，导致 J-V 曲线在较高电流密度下「下垂」。</li><li><span style="color: #ff6600; font-weight: bold;">并联电阻损失：</span> 实际器件中的并联电阻会导致漏电流，影响低电压下的性能。</li><li><span style="color: #ff6600; font-weight: bold;">光照不均匀性：</span> 实际光照往往不均匀，这会影响电流的产生。</li><li><span style="color: #ff6600; font-weight: bold;">非理想接触：</span> 电极接触通常不是理想的，会影响载子注入与收集效率</li></ul><p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-20124" src="https://enlitechnology.com/wp-content/uploads/2025/04/Practical-device-challenges-cn.webp" alt="Practical device challenges-cn" width="554" height="329" />Pseudo J-V 曲线不仅是一个理论工具，更是一个实用的指导方针。它帮助我们：</p><ul><li><span style="color: #ff6600; font-weight: bold;">理解材料的理论潜力：</span> 通过 QFLS 和理想二极管方程式，我们可以预测材料在完美条件下的性能。</li><li><span style="color: #ff6600; font-weight: bold;">识别性能损失的来源：</span> 通过比较 Pseudo J-V 曲线与实际 J-V 曲线，我们可以找到性能损失的具体原因。</li><li><span style="color: #ff6600; font-weight: bold;">指导器件设计优化：</span> 了解性能损失的来源后，我们可以有针对性地优化材料制备、器件结构和工艺流程，从而提高器件的整体效率。</li></ul><p>因此，Pseudo J-V 曲线是连接材料基础特性与器件实际性能的重要桥梁，对于半导体光伏器件的设计与优化具有不可或缺的价值。</p><h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">Enlitech QFLS-Maper测量设备的学术价值与技术特性</h2><p><img loading="lazy" decoding="async" class="aligncenter wp-image-20148 size-medium" src="https://enlitechnology.com/wp-content/uploads/2025/04/QFLS-Maper-NEW-PHOTO-e1744963174241-226x300.webp" alt="QFLS-Maper-NEW PHOTO" width="226" height="300" />在上述理论的基础上，测量PLQY并推导QFLS的关键在于仪器的精准度、灵敏度与多功能性。Enlitech的QFLS-Maper测量设备在如下几方面突显其学术价值与专业度：</p><ul><li><span style="color: #ff6600; font-weight: bold;">QFLS mapping功能，可视化材料均匀状况：</span><br />可视化呈现QFLS image，一眼即可掌握样品QFLS、Pseudo J-V、PLQY、EL-EQE等全貌；最快2分钟可透过Pseudo J-V预测材料效率的极限；极限3秒，就可以了解QFLS费米能阶分布情况。</li><li><span style="color: #ff6600; font-weight: bold;">超高动态光强范围 (1/10000 ~ 15个Sun)：</span><br />太阳能材料研究时，了解材料在极低光强（如室内照度或弱光应用）与超高光强（如高倍聚光应用）下的行为均很重要。QFLS-MAPER透过精密的光源调控与校正，能在1/10000个Sun到15个Sun的范围内保持稳定测试，协助研究者探讨材料在弱光与强光条件下载子复合行为的变化，为学术论文中的光照相关性研究提供强而有力的实验证据。</li><li><span style="color: #ff6600; font-weight: bold;">极低光强 PL 检测灵敏度 (可达10^-4量级)：</span><br />有机太阳能电池 (OPV) 因其材料特性，PL 发射强度普遍较低（如某些新颖OPV或窄能隙钙钛矿）。这使得研究者在利用传统设备时，难以获取高信噪比的 PLQY 数据。<br /><span style="text-decoration: underline; color: #13558e;"><span style="text-decoration: underline; color: #13558e;"><a style="color: #13558e;" href="https://enlitechnology.com/zh-hans/product/qfls-maper/"><b>光焱科技Enlitech最新研发的QFLS-MAPER 采用高灵敏度检测器和低噪声光学路径设计，大幅提高了微弱 PL 讯号的检测能力，可达10^-4量级。</b></a></span></span><p> </p><p>这种高灵敏度不仅能准确撷取微弱的 PL 讯号，更能让研究者进一步分析：</p></li></ul><ul><li style="list-style-type: none;"><ol><li><span style="color: #000000; font-weight: bold;">深能阶陷阱态：</span> 通过 PL 讯号分析，揭示 OPV 材料中存在的深能阶陷阱态（Deep-Level Traps）对非辐射复合的影响。</li><li><span style="color: #000000; font-weight: bold;">缺陷辐射： </span>精确评估缺陷引起的辐射复合（Defect-Mediated Radiative Recombination）对整体发光效率的贡献。</li><li><span style="color: #000000; font-weight: bold;">QFLS 与 iVoc 极限：</span> 利用高灵敏度 PL 数据，精确推导出 QFLS 值，并估算材料的理想开路电压 ( iVoc ) 极限。<p>这些精确的测量结果，对于深入理解 OPV 材料的载子动力学、评估其理论效能极限具有极高的学术价值。</p></li></ol></li></ul><ul><li><span style="color: #ff6600; font-weight: bold;">广泛的波长覆盖范围 (580 ~ 1100 nm)：</span><br />太阳能材料的研究日趋多元化，从钙钛矿系统（能隙约 1.5 ~ 1.7 eV）到有机半导体（能隙可延伸至近红外），皆需要对不同波长范围的 PL 讯号有良好的解析能力，QFLS-MAPER在标准机型配置下即能涵盖580~1100 nm常见光伏材料区间，对大多数学术研究而言已足以涵盖主要研究材料的吸收/发射范围。同时QFLS-MAPER在低光强测量与稳定性方面的强化，对于标准OPV与钙钛矿研究更为精准、容易操作。这表示它可以：</li><li style="list-style: none;"><ol><li><span style="color: #000000; font-weight: bold;">涵盖多种材料：</span> 同时满足钙钛矿、OPV 以及其他先进材料的 PL 测量需求，无需为不同能隙的材料更换设备。</li><li><span style="color: #000000; font-weight: bold;">提供更完整的 PL 信息：</span> 对不同波长的 PL 讯号进行解析，获取更全面的材料信息，如缺陷能级、多激子效应等。</li><li><span style="color: #000000; font-weight: bold;">提升实验室效率：</span> 简化实验流程，降低设备投资成本。</li></ol></li></ul><ul><li><span style="color: #ff6600; font-weight: bold;">高重现性与可溯源校正：</span><br />学术研究的可靠性基于实验结果的可重现性与可溯源性。QFLS-MAPER着重于数据的重现性与可溯源性，符合学术研究对实验可验证性的要求。QFLS-MAPER 采用经验丰富的光学设计和定期校正程序，确保测量结果的稳定性与可靠度。具体措施包含：</li><li style="list-style: none;"><ol><li><span style="color: #000000; font-weight: bold;">稳定性设计：</span> 采用精密的温度控制和稳定的光路系统，减少环境因素对测量结果的影响。</li><li><span style="color: #000000; font-weight: bold;">可溯源校正：</span> 使用 NIST 可追溯的标准光源和检测器，对仪器进行定期校正。</li></ol></li></ul><p>这些严格的质量控制措施，使研究者能够自信地将所测量的数据应用于严谨的学术论文，并有助于提升研究成果的可信度。相比之下，竞品并未明确强调光致量子产率及iVoc测试结果的重复性与稳定性指标。对学术单位而言，能持续产出稳定、可对照于各实验室标准的数据，有助于建立研究结果的国际公信力。</p><ul><li><span style="color: #ff6600; font-weight: bold;">整合学术模型与一键式分析：</span><br />QFLS-MAPER不仅是硬设备，更搭配对应软件算法与学术模型内置模块，研究者可一键式快速取得QFLS、iVoc及pseudo J-V。此种软硬件整合设计让研究者能快速将测量结果与理论模型对接，减轻自行开发数据后处理程序的负担。</li></ul><p><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-18407" src="https://enlitechnology.com/wp-content/uploads/2025/03/QFLS-Maper-Feature-Promotion-cn-3.webp" alt="QFLS-Maper-Feature-Promotion-cn- (3)" width="1080" height="500" /></p><h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">结论与展望</h2><p>透过PLQY测量并推导QFLS、iVoc与pseudo J-V，已成为新型太阳能材料研究的重要利器。Enlitech所推出的QFLS-Maper测量设备不但在基础理论上有扎实的学术背书（详细平衡、SRH复合理论、Shockley-Queisser极限模型），并透过高精度光学设计、广泛光强与波长范围、极高检测灵敏度、以及数据重现性的重视，为研究者提供了一个能可靠而快速解读材料内在极限潜能的专业平台。</p>						</div>
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		<p>這篇文章 <a href="https://enlitechsy.com/plqy-qfls-ivoc-pseudo-jv-photovoltaic-materials/">PLQY与QFLS深入解析：预测光伏材料 iVoc 与 Pseudo J–V 极限</a> 最早出現於 <a href="https://enlitechsy.com">胜焱电子科技-光焱科技 ENLITECH</a>。</p>
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		<title>QFLS准费米能级分裂技术指南：评估光伏材料性能上限 太阳能电池性能表征与效率提升的关键参数分析</title>
		<link>https://enlitechsy.com/qfls-quasi-fermi-level-splitting-principle-application/</link>
		
		<dc:creator><![CDATA[廖, 婉清]]></dc:creator>
		<pubDate>Tue, 15 Apr 2025 09:06:34 +0000</pubDate>
				<category><![CDATA[太阳能电池]]></category>
		<category><![CDATA[精准测量]]></category>
		<category><![CDATA[QFLS]]></category>
		<guid isPermaLink="false">https://enlitechsy.com/?p=8320</guid>

					<description><![CDATA[<p>目录 前言 核心摘要：准费米能级分裂（QFLS）是决定太阳能电池开路电压（VOC）热力学极限的关键物理量。通过 [&#8230;]</p>
<p>這篇文章 <a href="https://enlitechsy.com/qfls-quasi-fermi-level-splitting-principle-application/">QFLS准费米能级分裂技术指南：评估光伏材料性能上限 太阳能电池性能表征与效率提升的关键参数分析</a> 最早出現於 <a href="https://enlitechsy.com">胜焱电子科技-光焱科技 ENLITECH</a>。</p>
]]></description>
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			<h1 class="elementor-heading-title elementor-size-default">QFLS准费米能级分裂技术指南：评估光伏材料性能上限 太阳能电池性能表征与效率提升的关键参数分析</h1>		</div>
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							<h2 id="intro" style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">前言</h2>
<p style="background-color: #f4fcfc; padding: 15px; border-left: 4px solid #008080; margin-bottom: 20px; color: #444;">
<strong>核心摘要：</strong>准费米能级分裂（QFLS）是决定太阳能电池开路电压（V<sub>OC</sub>）热力学极限的关键物理量。通过精确分析QFLS，研究人员能直接量化材料内部的能量损耗，这是预测并提升光电转换效率（PCE）不可或缺的核心指标。
</p>
<p>准费米能级分裂（Quasi-Fermi Level Splitting，QFLS）是太阳能研究中一个重要的物理参数，广泛应用于半导体材料与光电器件的性能评估。QFLS描述了在非平衡态下，电子与空穴的准费米能级之间的能量差，并与光伏器件的开路电压（Open-Circuit Voltage，V<sub>OC</sub>）以及光电转换效率（Power Conversion Efficiency，PCE）密切相关。本文旨在全面探讨QFLS的基本概念和定义、背景与重要性、测量方法、计算公式及其在光伏器件中的应用，并分析其未来发展方向。&nbsp;</p>
<h2 id="concept-definition" style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">QFLS基本概念与定义</h2>
<p style="background-color: #f4fcfc; padding: 15px; border-left: 4px solid #008080; margin-bottom: 20px; color: #444;">
<strong>核心摘要：</strong>在光照或外加偏压的非平衡态下，电子与空穴的化学势发生分离形成QFLS，其数值直接反映了光生载流子的积累程度。理解电子与空穴准费米能级的具体定义与公式，是掌握半导体器件运作机制与优化路径的基础物理框架。
</p>
<h3 style="font-size: 20px; font-weight: bold;">基本概念</h3>
<p>准费米能级分裂QFLS是固态物理学和半导体器件研究中的一个重要概念，用于描述非平衡态下电子和空穴的能级分布。在平衡态下，半导体的费米能级（Fermi Level，E<sub>F</sub>）是唯一的，表示电子和空穴的化学势相等。然而，在光照或外加电压的作用下，半导体内部会产生光生载流子（电子和空穴），导致电子和空穴的分布不再遵循平衡态的费米-狄拉克分布，从而形成两个独立的准费米能级，分别为电子的准费米能级（E<sub>F,e</sub>）和空穴的准费米能级（E<sub>F,h</sub>）。</p>
<p>这种分裂现象的形成主要受到以下因素的影响：</p>
<ul>
<li><span style="color: #ff6600; font-weight: bold;">光生载流子的产生：</span>当半导体材料受到光照时，光子能量大于材料的带隙（Bandgap）时，会激发电子从价带跃迁到导带，形成电子-空穴对。这些光生载流子的浓度增加，导致电子和空穴的化学势发生改变。</li>
<li><span style="color: #ff6600; font-weight: bold;">载流子的复合：</span>光生载流子在材料内部会经历辐射复合（Radiative Recombination）和非辐射复合（Non-Radiative Recombination）。这些复合过程会影响准费米能级的分布，特别是非辐射复合会降低准费米能级分裂的幅度。</li>
<li><span style="color: #ff6600; font-weight: bold;">外加电压的影响：</span>在光伏器件中，外加电压会改变载流子的分布，进一步影响准费米能级的分裂。例如，在太阳能电池的开路条件下，载流子浓度达到最大，准费米能级分裂也达到最大值。</li>
</ul>
<p><img loading="lazy" decoding="async" class="aligncenter size-full" src="https://enlitechnology.com/wp-content/uploads/2025/03/QFLS-Basic-Concepts-cn.webp" alt="Enlitech-QFLS-Basic Concepts-cn" width="994" height="738"></p>
<p><br></p>
<h4 style="font-size: 18px; font-weight: bold; color: #333; margin-top: 20px;">专有名词对照表 (Glossary)</h4>
<p>为确保阅读流畅与概念精准，以下列出本文及相关研究中常用的关键术语对照与定义：</p>
<table style="width: 100%; border-collapse: collapse; margin-bottom: 20px; font-size: 16px; color: #000000; border: 1px solid #ccc;">
<thead style="background-color: #e0e0e0; color: #000;">
<tr>
<th style="padding: 12px; border: 1px solid #999; text-align: left;">英文缩写 / 术语</th>
<th style="padding: 12px; border: 1px solid #999; text-align: left;">简体中文名称</th>
<th style="padding: 12px; border: 1px solid #999; text-align: left;">定义简述</th>
</tr>
</thead>
<tbody>
<tr>
<td style="padding: 10px; border: 1px solid #ccc; font-weight: bold; background-color: #f5f5f5;">QFLS</td>
<td style="padding: 10px; border: 1px solid #ccc;">准费米能级分裂</td>
<td style="padding: 10px; border: 1px solid #ccc;">非平衡态下，电子与空穴准费米能级之间的能量差 (E<sub>F,e</sub> &#8211; E<sub>F,h</sub>)。</td>
</tr>
<tr>
<td style="padding: 10px; border: 1px solid #ccc; font-weight: bold; background-color: #f5f5f5;">V<sub>OC</sub></td>
<td style="padding: 10px; border: 1px solid #ccc;">开路电压</td>
<td style="padding: 10px; border: 1px solid #ccc;">器件在外部电流为零时两端的电压差，为器件的实际输出指标。</td>
</tr>
<tr>
<td style="padding: 10px; border: 1px solid #ccc; font-weight: bold; background-color: #f5f5f5;">iV<sub>OC</sub></td>
<td style="padding: 10px; border: 1px solid #ccc;">隐含开路电压</td>
<td style="padding: 10px; border: 1px solid #ccc;">由 QFLS 推导出的理论电压值 (QFLS/q)，代表材料本身的电压潜力。</td>
</tr>
<tr>
<td style="padding: 10px; border: 1px solid #ccc; font-weight: bold; background-color: #f5f5f5;">Pseudo J-V</td>
<td style="padding: 10px; border: 1px solid #ccc;">伪电流-电压曲线</td>
<td style="padding: 10px; border: 1px solid #ccc;">排除串联电阻影响后的理想 J-V 曲线，用于分析填充因子 (FF) 损失。</td>
</tr>
<tr>
<td style="padding: 10px; border: 1px solid #ccc; font-weight: bold; background-color: #f5f5f5;">PLQY</td>
<td style="padding: 10px; border: 1px solid #ccc;">光致发光量子产率</td>
<td style="padding: 10px; border: 1px solid #ccc;">发射光子数与吸收光子数的比值，量化辐射复合效率。</td>
</tr>
</tbody>
</table>
<h3 style="font-size: 20px; font-weight: bold;">定义</h3>
<ul>
<li><span style="color: #ff6600; font-weight: bold;">电子准费米能级（E<sub>F,e</sub>）</span>电子准费米能级（E<sub>F,e</sub>）是描述非平衡态下导带中电子分布的能级。当半导体材料受到光照或外加电压时，光生载流子（电子和空穴）会被激发，导致电子的分布偏离平衡态。此时，电子的能量分布不再由单一的费米-狄拉克分布描述，而是由电子准费米能级（E<sub>F,e</sub>）来表征。数学上，电子的分布可以表示为：f<sub>e</sub>(E) = 1 / (1 + exp((E &#8211; E<sub>F,e</sub>) / kT))<br>
<img loading="lazy" decoding="async" class="aligncenter" src="https://enlitechnology.com/wp-content/uploads/2025/03/Electron-Quasi-Fermi-Level-Formula-300x102.png" alt="Enlitech-Electron Quasi-Fermi Level Formula" width="300" height="102">其中，E为电子的能量，k为玻尔兹曼常数，T为绝对温度，E<sub>F,e</sub>为电子准费米能级。E<sub>F,e</sub>的大小取决于光生电子的浓度以及材料的导带态密度（N<sub>c</sub>）。电子准费米能级的提升通常意味着光生电子浓度的增加，这对于光伏器件的性能至关重要。例如，在高效钙钛矿太阳能电池中，E<sub>F,e</sub>的提升可以显著提高开路电压（V<sub>OC</sub>）。</li>
<li><span style="color: #ff6600; font-weight: bold;">空穴准费米能级（E<sub>F,h</sub>）</span>空穴准费米能级（E<sub>F,h</sub>）是描述非平衡态下价带中空穴分布的能级。与电子准费米能级类似，当半导体材料受到光照或外加电压时，价带中的空穴分布也会偏离平衡态，此时由空穴准费米能级（E<sub>F,h</sub>）来描述。数学上，空穴的分布可以表示为：f<sub>h</sub>(E) = 1 &#8211; 1 / (1 + exp((E &#8211; E<sub>F,h</sub>) / kT))<br>
<img loading="lazy" decoding="async" class="aligncenter" src="https://enlitechnology.com/wp-content/uploads/2025/03/Hole-Quasi-Fermi-Level-Formula-300x97.png" alt="Enlitech-Hole Quasi-Fermi Level Formula" width="300" height="97">其中，E为空穴的能量，E<sub>F,h</sub>为空穴准费米能级。E<sub>F,h</sub>的大小取决于光生空穴的浓度以及材料的价带态密度（N<sub>v</sub>）。空穴准费米能级的降低通常意味着光生空穴浓度的增加。对于光伏器件而言，E<sub>F,h</sub>的变化与界面复合和材料缺陷密切相关。例如，在钙钛矿太阳能电池中，通过界面钝化技术可以有效提升E<sub>F,h</sub>，从而减少非辐射复合损失。</li>
</ul>
<h3 id="formulas" style="font-size: 20px; font-weight: bold;">理论公式</h3>
<p>数学上，QFLS可以表示为：</p>
<p style="text-align: center;">QFLS = E<sub>F,e</sub> &#8211; E<sub>F,h</sub></p>
<p>其中，E<sub>F,e</sub> 和 E<sub>F,h</sub> 分别是电子和空穴的准费米能级。</p>
<p>在光伏器件中，QFLS 是开路电压 V<sub>OC</sub> 的理论上限，并且与光生载流子的产生效率和复合行为密切相关。根据理论，V<sub>OC</sub> 可以表示为：</p>
<p>V<sub>OC</sub> = QFLS / q</p>
<p><img loading="lazy" decoding="async" class="aligncenter" src="https://enlitechnology.com/wp-content/uploads/2025/03/Voc-to-QFLS-Formula.png" alt="Enlitech-Voc to QFLS Formula" width="170" height="90"></p>
<p>其中，q 是电子的基本电荷。</p>
<p>QFLS 的大小取决于材料的内部特性（如缺陷密度和非辐射复合速率）以及外部条件（如光照强度和温度）。在理想状态下，QFLS 仅受辐射复合的影响，这被称为辐射极限（Radiative Limit）。然而，在实际器件中，非辐射复合会降低 QFLS，从而导致开路电压损失。</p>
<p><br></p>
<h4 style="font-size: 18px; font-weight: bold; color: #333; margin-top: 20px;">关键参数互换关系对照表</h4>
<p>在实际研究中，QFLS、iV<sub>OC</sub>、PLQY 与 EL-EQE 代表了不同测量视角下的同一物理本质。下表整理了这些参数的互换关系与应用场景，协助研究人员在光学测量与电学性能之间建立链接：</p>
<table style="width: 100%; border-collapse: collapse; margin-bottom: 20px; font-size: 16px; color: #000000; border: 1px solid #ccc;">
<thead style="background-color: #e0e0e0; color: #000;">
<tr>
<th style="padding: 12px; border: 1px solid #999; text-align: left;">参数指标</th>
<th style="padding: 12px; border: 1px solid #999; text-align: left;">物理意义</th>
<th style="padding: 12px; border: 1px solid #999; text-align: left;">互换关系 / 核心公式</th>
<th style="padding: 12px; border: 1px solid #999; text-align: left;">主要应用场景</th>
</tr>
</thead>
<tbody>
<tr>
<td style="padding: 10px; border: 1px solid #ccc; font-weight: bold; background-color: #f5f5f5;">QFLS</td>
<td style="padding: 10px; border: 1px solid #ccc;">准费米能级分裂<br>(能量差, eV)</td>
<td style="padding: 10px; border: 1px solid #ccc;">核心基准</td>
<td style="padding: 10px; border: 1px solid #ccc;">评估材料本征质量、热力学极限</td>
</tr>
<tr>
<td style="padding: 10px; border: 1px solid #ccc; font-weight: bold; background-color: #f5f5f5;">iV<sub>OC</sub></td>
<td style="padding: 10px; border: 1px solid #ccc;">隐含开路电压<br>(电位差, V)</td>
<td style="padding: 10px; border: 1px solid #ccc;">iV<sub>OC</sub> = QFLS / q</td>
<td style="padding: 10px; border: 1px solid #ccc;">预测器件电压潜力 (非接触式测量)</td>
</tr>
<tr>
<td style="padding: 10px; border: 1px solid #ccc; font-weight: bold; background-color: #f5f5f5;">PLQY</td>
<td style="padding: 10px; border: 1px solid #ccc;">光致发光量子产率<br>(光学效率)</td>
<td style="padding: 10px; border: 1px solid #ccc;">QFLS ≈ QFLS<sub>rad</sub> + kT ln(PLQY)</td>
<td style="padding: 10px; border: 1px solid #ccc;">由纯光学测量反推电学性能 (适用于半电池/薄膜)</td>
</tr>
<tr>
<td style="padding: 10px; border: 1px solid #ccc; font-weight: bold; background-color: #f5f5f5;">EL-EQE</td>
<td style="padding: 10px; border: 1px solid #ccc;">电致发光外量子效率<br>(注入发光效率)</td>
<td style="padding: 10px; border: 1px solid #ccc;">V<sub>OC,loss</sub> = &#8211; (kT/q) ln(EL-EQE)</td>
<td style="padding: 10px; border: 1px solid #ccc;">分析完成器件(Device)的非辐射复合电压损失</td>
</tr>
</tbody>
</table>
<h2 id="background" style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">QFLS的发展背景</h2>
<p style="background-color: #f4fcfc; padding: 15px; border-left: 4px solid #008080; margin-bottom: 20px; color: #444;">
<strong>核心摘要：</strong>从早期半导体物理理论到现代薄膜太阳能技术，QFLS已演变为评估器件光电性能的标准工具。随着测量技术与模型的进步，它在分析钙钛矿、有机半导体等新型材料的界面复合与异质结优化上，扮演着越来越重要的角色。
</p>
<h3 style="font-size: 20px; font-weight: bold;">早期理论基础</h3>
<p>QFLS 的概念最早源于20世纪中期的半导体物理学研究。随着量子力学和固态物理学的发展，科学家提出了准费米能级的概念，用于描述非平衡态下的载流子分布。</p>
<p>在早期的研究中，QFLS 被用作分析光生载流子行为的理论工具，并逐渐应用于光电器件的性能评估。</p>
<h3 style="font-size: 20px; font-weight: bold;">光伏器件中的应用</h3>
<p>在20世纪末，QFLS 开始被广泛应用于光伏器件的研究中。研究表明，QFLS 与器件的 V<sub>OC</sub> 和 PCE 密切相关，并且可以用于量化非辐射复合损失。</p>
<p>特别是在薄膜太阳能电池（如 CIGS 和钙钛矿太阳能电池）中，QFLS 被用来评估材料内部和界面处的复合行为，从而指导材料和器件的优化。</p>
<h3 style="font-size: 20px; font-weight: bold;">现代技术的进步</h3>
<p>随着测量技术的进步，科学家可以更准确地测量 QFLS，并将其与材料的光电性能直接关联。例如，光致发光量子产率（PLQY）和电致发光量子产率（ELQY）技术的发展，使得 QFLS 的测量精度和应用范围显著提升。</p>
<p>此外，现代技术还使得 QFLS 的研究从单层材料扩展到多层结构和异质结构，为新型太阳能材料（如钙钛矿和有机半导体）的开发拓展应用潜能。</p>
<p><img loading="lazy" decoding="async" class="aligncenter" src="https://enlitechnology.com/wp-content/uploads/2025/03/solar-cell-research-Schematic-diagram.webp" alt="" width="900" height="382"></p>
<h2 id="pv-evaluation" style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">QFLS在太阳能研究中的重要性</h2>
<p style="background-color: #f4fcfc; padding: 15px; border-left: 4px solid #008080; margin-bottom: 20px; color: #444;">
<strong>核心摘要：</strong>QFLS决定了光伏器件的理论电压上限，其与辐射极限的差距直接揭示了非辐射复合带来的能量损失。结合Pseudo J-V曲线分析，研究者能排除串联电阻干扰，精确诊断材料本征性能与界面缺陷，锁定效率提升的关键瓶颈。
</p>
<h3 style="font-size: 20px; font-weight: bold;">开路电压（V<sub>OC</sub>）的理论上限</h3>
<p>QFLS 是光伏器件中开路电压 V<sub>OC</sub> 的理论上限，这使其成为评估器件性能的关键参数。V<sub>OC</sub> 是光伏器件在无电流流动时的最大电压，其大小直接影响光电转换效率（Power Conversion Efficiency， PCE）。更高的 QFLS 代表着更高的 V<sub>OC</sub>，进而提升器件的效率。</p>
<p>在理想状态下，V<sub>OC</sub> 仅受辐射复合的限制。然而，实际器件中的非辐射复合（如缺陷态复合和界面复合）会导致 QFLS 与 V<sub>OC</sub> 之间的差距，这种差距反映了器件内部的能量损失。</p>
<h3 id="pseudo-jv" style="font-size: 20px; font-weight: bold;">Pseudo J-V 曲线的应用与价值</h3>
<p>Pseudo J-V 曲线提供一种理想化的性能评估工具，帮助研究人员排除串联电阻等外部因素的影响，专注于器件的内在物理特性。其重要性体现在以下几个方面：</p>
<ul>
<li><span style="color: #ff6600; font-weight: bold;">效率潜力评估：</span>Pseudo J-V 曲线能准确量化器件的理想填充因子（Pseudo FF）和潜在效率，并与实际 J-V 曲线进行比较，揭示损失机制。</li>
<li><span style="color: #ff6600; font-weight: bold;">非辐射复合损失分析：</span>研究人员通过对比QFLS与V<sub>OC</sub>的差距，能够精确量化材料中的非辐射复合损失。</li>
<li><span style="color: #ff6600; font-weight: bold;">材料与界面改进：</span>这项技术在钙钛矿太阳能电池及其他新兴太阳能领域已有广泛应用，研究团队利用它来优化界面钝化策略并调整材料结构，大幅提升实际器件的性能表现。</li>
</ul>
<h3 style="font-size: 20px; font-weight: bold;">非辐射复合损失的表徵</h3>
<p>QFLS 是量化非辐射复合损失的重要工具。非辐射复合是光伏器件中能量损失的主要来源之一，会降低光生载流子的寿命和浓度，从而降低V<sub>OC</sub> 和 PCE。</p>
<p>通过测量 QFLS 与 V<sub>OC</sub> 之间的差距，可以识别非辐射复合的主要来源，例如：</p>
<ul>
<li><span style="color: #ff6600; font-weight: bold;">缺陷态复合：</span>由材料内部的缺陷或杂质引起。</li>
<li><span style="color: #ff6600; font-weight: bold;">界面复合：</span>发生在活性层与传输层之间的界面处。</li>
</ul>
<h3 style="font-size: 20px; font-weight: bold;">光电转换效率（PCE）的提升</h3>
<p>QFLS的高低直接反映了太阳能材料中光生载流子能被收集的效能。当QFLS值较高时，系统中的能量损耗便相对减少，能提升太阳能电池的整体转换效率。例如，在钙钛矿太阳能电池中，QFLS的提升可以显著减少非辐射复合损失，从而提高光电转换效率（PCE）。</p>
<p>此外，QFLS还可以用于量化不同材料或结构的非辐射复合损失，从而指导材料改性和界面钝化技术的应用。</p>
<h3 style="font-size: 20px; font-weight: bold;">材料和界面表征的应用</h3>
<p>通过测量QFLS，可以评估材料的内在性能和界面处的复合损失。在非器件态下，QFLS的测量可以避免电极或其他器件的影响，直接反映材料的本征性能。例如，光致发光量子效率（PLQY）和电致发光量子效率（ELQY）技术已被广泛用于QFLS的测量，并为材料的优化提供了重要依据。</p>
<p><img loading="lazy" decoding="async" class="aligncenter size-full" src="https://enlitechnology.com/wp-content/uploads/2025/03/QFLS-importance-cn.webp" alt="Enlitech-QFLS-importance-cn" width="1038" height="770"></p>
<h2 style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">QFLS相关理论</h2>
<p style="background-color: #f4fcfc; padding: 15px; border-left: 4px solid #008080; margin-bottom: 20px; color: #444;">
<strong>核心摘要：</strong>辐射极限定义了在零非辐射复合下的理想QFLS与V<sub>OC</sub>值。通过比较实验数据与此理论极限，并结合Pseudo J-V曲线分析，研究者能将抽象的能量损失具体归因为缺陷态复合、界面复合或俄歇复合，为提升器件效率提供明确的物理依据。
</p>
<h3 style="font-size: 20px; font-weight: bold;">辐射极限</h3>
<p>辐射极限（Radiative Limit）是光伏器件性能的理论上限，指在仅考虑辐射复合的情况下，QFLS 和 V<sub>OC</sub> 的最大值。在辐射极限下，所有光生载流子都通过辐射复合释放能量，没有非辐射复合损失。</p>
<p>然而，在实际器件中，非辐射复合是不可避免的，主要包括以下几种类型：</p>
<ul>
<li><span style="color: #ff6600; font-weight: bold;">缺陷态复合：</span>由于材料内部的缺陷或杂质，电子和空穴会通过缺陷态进行复合，导致能量损失。</li>
<li><span style="color: #ff6600; font-weight: bold;">界面复合：</span>在多层结构的光伏器件中，界面处的能带不连续或缺陷会导致载流子的复合，这是非辐射复合的重要来源。</li>
<li><span style="color: #ff6600; font-weight: bold;">俄歇复合：</span>在高载流子浓度下，电子和空穴的能量会通过与另一个载流子的碰撞传递，这种过程也会导致非辐射复合。</li>
</ul>
<h3 style="font-size: 20px; font-weight: bold;">非辐射复合</h3>
<p>非辐射复合的存在会降低 QFLS 和 V<sub>OC</sub>，从而限制光伏器件的性能。因此，减少非辐射复合损失是提升光伏器件效率的关键。</p>
<h3 style="font-size: 20px; font-weight: bold;">Pseudo J-V曲线</h3>
<p>Pseudo J-V 曲线是基于 QFLS 数据生成的理想化电流-电压特性曲线。通过测量不同光强下的 QFLS 值，可以模拟出在无串联电阻影响下的器件性能。这种方法能帮助研究人员量化非辐射复合损失、界面缺陷以及潜在的填充因子 (FF) 损失，从而评估器件的效率潜力。</p>
<h2 id="methods" style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">QFLS的测量计算方法</h2>
<p style="background-color: #f4fcfc; padding: 15px; border-left: 4px solid #008080; margin-bottom: 20px; color: #444;">
<strong>核心摘要：</strong>由于无法直接测量，科学界主要采用光致发光量子产率（PLQY）与电致发光（ELQY）等间接测量法来推导QFLS。结合高能尾部拟合（HET Fit）与电子漂移-扩散模型，研究人员能从光谱数据中精确计算准费米能级，并有效校正吸收率与温度带来的测量误差。
</p>
<p>由于QFLS无法直接测量，科学家们发展了多种间接测量和计算方法。本章将详细介绍几种主要的QFLS测量方法，包括光致发光量子产率（PLQY）测量、电致发光量子产率（ELQY）测量、Pseudo J-V曲线、高能尾部拟合方法、电子漂移-扩散模型以及电子结构计算（第一性原理）。</p>
<p><img loading="lazy" decoding="async" class="aligncenter size-full" src="https://enlitechnology.com/wp-content/uploads/2025/03/QFLS-Measurement-method-cn.webp" alt="Enlitech-QFLS-Measurement method-cn" width="798" height="848"></p>
<p><br></p>
<div style="background-color: #fff8f2; border: 1px solid #ffcc99; border-radius: 8px; padding: 20px; margin: 30px 0;">
<h4 style="margin-top: 0; color: #d35400; font-size: 18px; font-weight: bold;">🛠️ QFLS 计算实战指南 (How-To)</h4>
<p style="color: #444; font-size: 15px;">想尝试自己计算 QFLS？请遵循以下标准流程，避免常见陷阱：</p>
<p>    <strong style="display:block; margin-top:10px; color:#000;">1. 准备输入数据 (Input)</strong></p>
<ul style="margin-top:5px; color:#444;">
<li><strong>绝对光谱数据 (Absolute PL Spectrum)：</strong> 需经过光谱响应与绝对强度校准。</li>
<li><strong>样品吸收率 (Absorbance)：</strong> 建议使用积分球测量，以获得准确的吸收值。</li>
<li><strong>温度 (Temperature)：</strong> 需记录测量当下的绝对温度 T。</li>
</ul>
<p>    <strong style="display:block; margin-top:10px; color:#000;">2. 选择计算路径 (Process)</strong></p>
<ul style="margin-top:5px; color:#444;">
<li><strong>路径 A (快速估算)：</strong> 通过 PLQY 数值反推。 <br><em>公式：QFLS ≈ QFLS<sub>rad</sub> + kT ln(PLQY)</em></li>
<li><strong>路径 B (精确拟合)：</strong> 使用高能尾部拟合 (HET Fit)。<br><em>方法：针对 PL 光谱的高能端进行指数拟合，提取载流子温度与能级分裂值。</em></li>
</ul>
<p>    <strong style="display:block; margin-top:10px; color:#000;">3. 输出结果与判读 (Output)</strong></p>
<ul style="margin-top:5px; color:#444;">
<li><strong>QFLS (eV)：</strong> 数值越高，代表材料质量越好，V<sub>OC</sub> 潜力越高。</li>
<li><strong>常见陷阱：</strong> 若 QFLS &gt; Bandgap，检查是否激发光过强或光谱校准错误；若数值波动大，请检查控温是否稳定。</li>
</ul>
<p>    <strong style="display:block; margin-top:10px; color:#000;">4. 适用情境</strong></p>
<p style="margin-top:5px; margin-bottom:0; color:#444;">✅ 适用：钙鈦矿薄膜、有机半导体、叠层子电池筛选。<br>❌ 不适用：串联电阻极高的劣质器件（需改用 Pseudo J-V 分析）。</p>
</div>
<p><br></p>
<h3 id="plqy" style="font-size: 20px; font-weight: bold;">光致发光量子产率(PLQY)测量</h3>
<p>光致发光量子产率（Photoluminescence Quantum Yield， PLQY）是测量QFLS的常用方法之一，其基本原理是通过测量样品吸收的光子数与发射的光子数之比，来推导光生载流子的辐射复合效率，进而计算QFLS。</p>
<h4 style="font-size: 16px; font-weight: bold; color: #13558e;">测量步骤</h4>
<ol>
<li><span style="color: #ff6600; font-weight: bold;">激发样品：</span>使用激光或光源照射样品，激发光生载流子。</li>
<li><span style="color: #ff6600; font-weight: bold;">收集光致发光信号：</span>通过高灵敏度的光谱仪收集样品的光致发光信号，并测量其光通量密度（Φ<sub>lum</sub>）</li>
<li><span style="color: #ff6600; font-weight: bold;">计算PLQY：</span>根据样品的吸收率（a）和激发光子通量密度（Φ<sub>exc</sub>），计算PLQY，公式如下：η<sub>PLQY</sub> = Φ<sub>lum</sub> / (Φ<sub>exc</sub> · a)<br>
<img loading="lazy" decoding="async" class="aligncenter" src="https://enlitechnology.com/wp-content/uploads/2025/03/PLQY-calculation-formula.png" alt="Enlitech-PLQY calculation formula" width="222" height="92">其中：Φ<sub>lum</sub>为光致发光的光通量密度，Φ<sub>exc</sub>为激发光子通量密度，a为样品的吸收率。</li>
<li><span style="color: #ff6600; font-weight: bold;">推导QFLS：</span>利用以下公式计算QFLS：QFLS = kT · ln(η<sub>PLQY</sub>)其中，k为玻尔兹曼常数，T为绝对温度，η<sub>PLQY</sub>为光致发光量子产率。<br>
<img loading="lazy" decoding="async" src="https://enlitechnology.com/wp-content/uploads/2025/03/PLQY-calculation-QFLS-formula.png" alt="PLQY calculation QFLS formula" width="291" height="49"></li>
</ol>
<h4 style="font-size: 16px; font-weight: bold;">优点：</h4>
<ul>
<li>非破坏性测量，适用于多种材料，包括钙钛矿、硅和有机半导体。</li>
<li>可直接量化辐射复合效率，为材料性能评估提供重要依据。</li>
</ul>
<h4 style="font-size: 16px; font-weight: bold;">限制：</h4>
<ul>
<li>测量结果可能受样品表面缺陷和界面复合影响。</li>
<li>需要高灵敏度的光学设备，并且对测量条件的稳定性要求较高。</li>
</ul>
<p><img loading="lazy" decoding="async" class="aligncenter" src="https://enlitechnology.com/wp-content/uploads/2025/03/QFLS-5.webp" alt="Enlitech-QFLS-5" width="800" height="800"></p>
<p><!-- Function Card 1: PLQY to iVoc --></p>
<div style="background-color: #f0f7ff; border: 1px solid #cce5ff; border-radius: 8px; padding: 20px; margin: 30px 0; box-shadow: 0 2px 4px rgba(0,0,0,0.05);">
<h4 style="margin-top: 0; color: #13558e; font-size: 18px; font-weight: bold;">🔍 应用模块推荐：从 PLQY 直接推导 iV<sub>OC</sub></h4>
<p style="color: #444; font-size: 15px; line-height: 1.6;">需要量化 QFLS 并预测材料的开路电压潜力？</p>
<p style="color: #444; font-size: 15px; line-height: 1.6;">光焱科技新一代 <strong>QFLS-Maper</strong> 系统整合了高精度 PLQY 模块，内建光电转换算法，可直接将测量到的光学信号转换为 <strong>QFLS</strong> 与 <strong>隐含开路电压 (iV<sub>OC</sub>)</strong> 数据，省去繁琐的公式运算，直接获得可视化的理论极限分析。</p>
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<h3 style="font-size: 20px; font-weight: bold;">电致发光量子产率(ELQY)测量</h3>
<p>电致发光量子产率（Electroluminescence Quantum Yield， ELQY）是另一种测量QFLS的方法，特别适用于已制备的光电器件。其原理类似于PLQY，但激发载流子的方式是通过外加电压或电流。</p>
<h4 style="font-size: 16px; font-weight: bold; color: #13558e;">测量步骤</h4>
<ol>
<li><span style="color: #ff6600; font-weight: bold;">施加电压或电流：</span>对器件施加电压或电流，激发载流子复合。</li>
<li><span style="color: #ff6600; font-weight: bold;">收集电致发光信号：</span>使用光谱仪测量器件的电致发光信号，并计算ELQY。</li>
<li><span style="color: #ff6600; font-weight: bold;">计算QFLS：</span>使用与PLQY相同的公式计算QFLS。</li>
</ol>
<h4 style="font-size: 16px; font-weight: bold;">优点：</h4>
<ul>
<li>适用于实际器件的性能评估。</li>
<li>可直接反映器件内部的非辐射复合行为。</li>
</ul>
<h4 style="font-size: 16px; font-weight: bold;">限制：</h4>
<ul>
<li>测量结果可能受器件结构和界面影响。</li>
<li>需要稳定的电流源和高灵敏度的光学检测设备。</li>
</ul>
<h3 style="font-size: 20px; font-weight: bold;">Pseudo J-V 曲线的生成方法</h3>
<ol>
<li><span style="color: #ff6600; font-weight: bold;">测量 QFLS 数据：</span>使用光致发光量子产率（PLQY）或电致发光量子产率（ELQY）测量不同光强下的 QFLS 值。这些数据可以通过光谱高能尾拟合或其他算法计算得到。</li>
<li><span style="color: #ff6600; font-weight: bold;">计算复合电流密度 J<sub>rec</sub></span>：根据 QFLS 值，计算复合电流密度，公式如下：J<sub>rec</sub> = J<sub>0</sub> · (e<sup>(q · QFLS) / (kT)</sup> &#8211; 1)<br>
<img loading="lazy" decoding="async" class="aligncenter" src="https://enlitechnology.com/wp-content/uploads/2025/03/Formula-for-calculating-composite-current-density.png" alt="Enlitech-Formula for calculating composite current density" width="333" height="85">其中，J<sub>0</sub> 是暗饱和电流密度，q 是电子电荷，k 是玻尔兹曼常数，T 是温度。</li>
<li><span style="color: #ff6600; font-weight: bold;">生成 Pseudo J-V 曲线</span>：将复合电流密度与 QFLS 值作图，并减去与电压无关的光生电流(J<sub>gen</sub>)密度 ，即可生成 Pseudo J-V 曲线提供一种理想化的性能评估工具，帮助研究人员排除串联电阻等外部因素的影响，专注于器件的内在物理特性。其重要性体现在以下几个方面：J = J<sub>gen</sub> &#8211; J<sub>rec<br>
<img loading="lazy" decoding="async" class="aligncenter size-full wp-image-17857" src="https://enlitechnology.com/wp-content/uploads/2025/03/QFLS-Pseudo-JV.png" alt="QFLS Pseudo JV" width="293" height="89"></sub>该曲线反映了理想条件下的器件性能，帮助研究人员了解光伏器件的内部物理机制。</li>
</ol>
<p><!-- Function Card 2: Pseudo J-V --></p>
<div style="background-color: #f0f7ff; border: 1px solid #cce5ff; border-radius: 8px; padding: 20px; margin: 30px 0; box-shadow: 0 2px 4px rgba(0,0,0,0.05);">
<h4 style="margin-top: 0; color: #13558e; font-size: 18px; font-weight: bold;">📈 软件功能特色：一键生成 Pseudo J-V 曲线</h4>
<p style="color: #444; font-size: 15px; line-height: 1.6;">想深入分析串联电阻影响，并评估填充因子 (FF) 损失？</p>
<p style="color: #444; font-size: 15px; line-height: 1.6;">通过 Enlitech 的专属分析软件，您可以将测得的 QFLS 数据与理论模型结合，自动生成 <strong>Pseudo J-V 曲线</strong>。这能帮助研究团队快速区分“材料本征极限”与“器件工艺损失”，为效率突破提供明确指引。</p>
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</div>
<h3 id="het-fit" style="font-size: 20px; font-weight: bold;">高能尾部拟合方法（HET Fit）</h3>
<p>高能尾部拟合方法是一种基于光致发光光谱的技术，用于精确计算QFLS。该方法通过拟合光谱的高能部分，推导出载流子的能量分布。</p>
<h4 style="font-size: 16px; font-weight: bold; color: #13558e;">测量步骤</h4>
<ol>
<li><span style="color: #ff6600; font-weight: bold;">获取光谱数据：</span>使用光谱仪获取样品的光致发光光谱。</li>
<li><span style="color: #ff6600; font-weight: bold;">拟合高能尾部：</span>拟合光谱的高能尾部，计算光子能量与光通量密度的关系。</li>
<li><span style="color: #ff6600; font-weight: bold;">推导QFLS：</span>根据拟合结果，使用以下公式计算QFLS：QFLS = (q / kT) · ln(Φ<sub>lum</sub> / (Φ<sub>exc</sub> · a))<img loading="lazy" decoding="async" class="aligncenter wp-image-17839 size-medium" src="https://enlitechnology.com/wp-content/uploads/2025/03/HET-Fit-derivation-of-QFLS-formula-300x75.png" alt="HET Fit derivation of QFLS formula" width="300" height="75"><br>
其中，q为电子电荷，a为样品的吸收率，T为绝对温度，Φ<sub>lum</sub>为光致发光的光通量密度，Φ<sub>exc</sub>为激发光子通量密度，a为样品的吸收率。</li>
</ol>
<h4 style="font-size: 16px; font-weight: bold;">优点：</h4>
<ul>
<li>高精度，适用于研究材料内部的能量分布。</li>
<li>可用于分析非辐射复合损失。</li>
</ul>
<h4 style="font-size: 16px; font-weight: bold;">限制：</h4>
<ul>
<li>需要高分辨率的光谱仪。</li>
<li>拟合结果可能受样品均匀性影响。</li>
</ul>
<h3 style="font-size: 20px; font-weight: bold;">电子漂移-扩散模型</h3>
<p>电子漂移-扩散模型是一种理论计算方法，通过模拟载流子的漂移和扩散行为，来估算QFLS。</p>
<h3 style="font-size: 20px; font-weight: bold;">模型建立与计算</h3>
<ol>
<li><span style="color: #ff6600; font-weight: bold;">建立数学模型：</span>根据材料的物理参数（如载流子寿命、扩散系数等），建立漂移-扩散模型。</li>
<li><span style="color: #ff6600; font-weight: bold;">模拟载流子行为：</span>模拟光生载流子的产生、复合和传输过程。</li>
<li><span style="color: #ff6600; font-weight: bold;">计算QFLS：</span>根据模拟结果，推导出QFLS。</li>
</ol>
<h4 style="font-size: 16px; font-weight: bold;">优点：</h4>
<ul>
<li>适用于研究材料内部的载流子动力学。</li>
<li>可结合实验数据进行校准。</li>
</ul>
<h4 style="font-size: 16px; font-weight: bold;">限制：</h4>
<ul>
<li>需要详细的材料参数。</li>
<li>模型的准确性依赖于假设条件。</li>
</ul>
<h3 style="font-size: 20px; font-weight: bold;">电子结构计算（第一性原理）</h3>
<p>第一性原理计算（如密度泛函理论，DFT）可用于模拟材料的电子结构，从而计算QFLS。</p>
<h4 style="font-size: 16px; font-weight: bold; color: #13558e;">计算步骤</h4>
<ol>
<li><span style="color: #ff6600; font-weight: bold;">模拟电子结构：</span>使用第一性原理方法模拟材料的电子结构。</li>
<li><span style="color: #ff6600; font-weight: bold;">计算准费米能级：</span>计算导带和价带中的准费米能级位置。</li>
<li><span style="color: #ff6600; font-weight: bold;">推导QFLS：</span>根据模拟结果，计算QFLS。</li>
</ol>
<h4 style="font-size: 16px; font-weight: bold;">优点：</h4>
<ul>
<li>适用于研究新材料的理论性能。</li>
<li>可提供原子尺度的详细信息。</li>
</ul>
<h4 style="font-size: 16px; font-weight: bold;">限制：</h4>
<ul>
<li>计算量大，对计算资源要求高。</li>
<li>需要高水平的理论知识。</li>
</ul>
<h3 id="corrections" style="font-size: 20px; font-weight: bold;">影响因素与修正项</h3>
<ul>
<li><span style="color: #ff6600; font-weight: bold;">温度的影响</span>温度对QFLS的计算有显著影响，因为kT直接影响公式中的对数项。测量时需保持样品在稳定的温度条件下，并考虑温度对载流子复合行为的影响。</li>
<li><span style="color: #ff6600; font-weight: bold;">非辐射复合的校正</span>非辐射复合会降低PLQY或ELQY，导致QFLS的低估。需要通过校正非辐射复合损失来提高准确性，例如结合漂移-扩散模型进行校正。</li>
<li><span style="color: #ff6600; font-weight: bold;">吸收率的准确测定</span>样品的吸收率直接影响光子通量的计算，需通过实验或理论模型准确测定。吸收率的误差可能导致QFLS的计算偏差。</li>
<li><span style="color: #ff6600; font-weight: bold;">光谱校准的必要性</span>测量系统需进行绝对光子数校准，以确保光谱数据的准确性。高能尾部拟合方法的先决条件是将整个测量系统校准为绝对光子数。</li>
</ul>
<p><br></p>
<h4 style="font-size: 18px; font-weight: bold; color: #333; margin-top: 15px;">常见测量误差来源与影响</h4>
<p>为了获得可信的QFLS数值，研究人员在进行PLQY或EL测量时，需特别注意以下误差来源的修正：</p>
<table style="width: 100%; border-collapse: collapse; margin-bottom: 20px; font-size: 16px; color: #000000; border: 1px solid #ccc;">
<thead style="background-color: #e0e0e0; color: #000;">
<tr>
<th style="padding: 12px; border: 1px solid #999; text-align: left;">误差来源</th>
<th style="padding: 12px; border: 1px solid #999; text-align: left;">对计算结果的影响</th>
<th style="padding: 12px; border: 1px solid #999; text-align: left;">修正与减缓策略</th>
</tr>
</thead>
<tbody>
<tr>
<td style="padding: 10px; border: 1px solid #ccc; font-weight: bold; background-color: #f5f5f5;">温度变异 (T)</td>
<td style="padding: 10px; border: 1px solid #ccc;">QFLS计算含 <em>kT</em> 项，温度不稳将直接导致能级分裂数值波动。</td>
<td style="padding: 10px; border: 1px solid #ccc;">使用控温载台 (Temperature-controlled stage)，确保测量过程恒温。</td>
</tr>
<tr>
<td style="padding: 10px; border: 1px solid #ccc; font-weight: bold; background-color: #f5f5f5;">光子数校准</td>
<td style="padding: 10px; border: 1px solid #ccc;">若非“绝对”光子数，会导致发光通量估算错误，进而影响 QFLS 计算准确度。</td>
<td style="padding: 10px; border: 1px solid #ccc;">定期对光谱系统进行光谱响应与绝对强度校准 (Spectral Calibration)。</td>
</tr>
<tr>
<td style="padding: 10px; border: 1px solid #ccc; font-weight: bold; background-color: #f5f5f5;">吸收率 (A) 估算</td>
<td style="padding: 10px; border: 1px solid #ccc;">高估样品吸收率会导致 PLQY 被低估，进而低估 QFLS。</td>
<td style="padding: 10px; border: 1px solid #ccc;">配合积分球 (Integrating Sphere) 准确测量实际吸收率，而非仅依赖穿透率推算。</td>
</tr>
<tr>
<td style="padding: 10px; border: 1px solid #ccc; font-weight: bold; background-color: #f5f5f5;">几何与再吸收</td>
<td style="padding: 10px; border: 1px solid #ccc;">光子再吸收 (Photon Recycling) 效应可能导致发光光谱红移或强度改变。</td>
<td style="padding: 10px; border: 1px solid #ccc;">在光谱分析时引入再吸收修正模型，或使用光焱科技专用分析软件进行校正。</td>
</tr>
</tbody>
</table>
<h3 id="practical-notes" style="font-size: 20px; font-weight: bold;">实际计算中的注意事项</h3>
<ul>
<li><span style="color: #ff6600; font-weight: bold;">确保稳态与光浸润效应 (Light Soaking)：</span>钙钛矿材料普遍存在离子迁移现象，刚开启激光时的 PL 信号并非稳态。需等待数秒至数分钟（光浸润效应），直到信号变异率低于容许范围后才能记录数据，否则 QFLS 将不具代表性。</li>
<li><span style="color: #ff6600; font-weight: bold;">光强依赖性与等效 1 Sun 定义：</span>测量时应改变激发光强（如 0.01 Sun 到 1 Sun）进行扫描。QFLS 随光强变化斜率所推导的“理想因子 (Ideality Factor, n)”是判断复合机制（辐射复合 n=1，缺陷复合 n=2）的重要依据。同时，1 Sun 的设定应以“材料实际吸收产生短路电流（J<sub>sc</sub>）”为基准，而非单纯的激光光功率。</li>
<li><span style="color: #ff6600; font-weight: bold;">相分离与载流子汇聚陷阱：</span>在混合卤素钙钛矿中，载流子易汇聚至低带隙富碘相发光。这会导致测得的 PLQY 很高，但实际上并未反映整体材料的真实费米能级。此时单纯用 PLQY 推导的 QFLS 会严重失真。</li>
<li><span style="color: #ff6600; font-weight: bold;">几何校正与再吸收效应：</span>厚样品或反射率高的衬底会引发强烈的光子再吸收 (Photon Recycling)，导致光谱红移与 PLQY 虚高，需通过光学模型进行修正。</li>
</ul>
<h2 id="applications" style="font-size: 28px; color: #008080; line-height: 30px; font-weight: bold;">QFLS的应用领域与实际案例</h2>
<p style="background-color: #f4fcfc; padding: 15px; border-left: 4px solid #008080; margin-bottom: 20px; color: #444;">
<strong>核心摘要：</strong>在钙钛矿太阳能电池开发中，QFLS被广泛用于非器件态薄膜的质量监控与隐含开路电压（iV<sub>OC</sub>）预测。藉由量化不同工艺与钝化策略下的QFLS变化，开发团队能快速筛选理想材料配方，并针对界面复合损耗进行精准修复。
</p>
<h3 style="font-size: 20px; font-weight: bold;">太阳能电池性能评估</h3>
<ul>
<li><span style="color: #ff6600; font-weight: bold;">非器件态表征</span>在钙钛矿太阳能电池的早期开发阶段，非器件态表征是一种有效的研究方法。这种方法可以直接研究材料的本征性能，避免器件结构对测量结果的影响。例如，德国HySPRINT实验室利用光致发光量子效率（PLQY）测量技术，对不同制备工艺下的钙钛矿薄膜进行了逐层评估，揭示了不同膜层对QFLS的影响。随着膜层数量的增加，QFLS呈现下降趋势，这主要是由于膜层间的界面复合损失所致。此外，PLQY mapping技术还可以用于分析钙钛矿薄膜的均匀性和缺陷分布。例如，在不同光照强度下进行PLQY mapping测试，可以揭示钙钛矿薄膜内部的光电转换特性和复合行为。</li>
</ul>
<p><img loading="lazy" decoding="async" class="aligncenter" src="https://enlitechnology.com/wp-content/uploads/2025/03/enlitech-QFLS-Maper-1-tw.webp" alt="enlitech QFLS-Maper-1-tw" width="716" height="403"></p>
<p><!-- Function Card 3: Mapping/Imaging --></p>
<div style="background-color: #f0f7ff; border: 1px solid #cce5ff; border-radius: 8px; padding: 20px; margin: 30px 0; box-shadow: 0 2px 4px rgba(0,0,0,0.05);">
<h4 style="margin-top: 0; color: #13558e; font-size: 18px; font-weight: bold;">🗺️ 可视化分析功能：从单点测量到空间分布成像 (Mapping)</h4>
<p style="color: #444; font-size: 15px; line-height: 1.6;">单点数据无法完全代表薄膜整体的均匀性？</p>
<p style="color: #444; font-size: 15px; line-height: 1.6;">QFLS-Maper 具备先进的 <strong>全域扫描成像</strong> 技术，能捕捉材料完整的 QFLS 分布图，一目了然地呈现局部缺陷与不均匀区域。这让研究人员不仅能“算出”效率潜力，更能直观“看见”工艺改进的空间。</p>
<div style="margin-top: 15px; text-align: right;">
        <a href="https://enlitechsy.com/product/qfls-maper/" style="display: inline-block; background-color: #13558e; color: white; padding: 8px 16px; border-radius: 4px; font-size: 14px; text-decoration: none;">联络我们了解演示 →</a>
    </div>
</div>
<ul>
<li><span style="color: #ff6600; font-weight: bold;">QFLS与开路电压的关系</span>研究表明，钙钛矿材料的QFLS通常低于其理论辐射极限，这主要是由于非辐射复合和界面能量损失所致。例如，波茨坦大学的研究发现，钙钛矿中的QFLS显著低于其所有光强下的辐射极限，并且V<sub>OC</sub>通常低于QFLS，这违反了Shockley-Queisser理论的假设。这种偏移表明，非辐射复合和界面缺陷是限制V<sub>OC</sub>的主要因素。此外，研究还发现，通过优化钙钛矿层与电子传输层（ETL）或空穴传输层（HTL）之间的界面，可以显著提升QFLS。例如，通过引入二胺分子修饰钙钛矿表面，研究人员成功将QFLS提升了90 meV，从而使1.79 eV的钙钛矿太阳能电池达到1.33 V的V<sub>OC</sub>，并实现了超过19%的功率转换效率（PCE）。资料来源：<a style="text-decoration: none;" href="https://doi.org/10.1002/adma.202310962" target="_blank" rel="noopener">Enhanced Quasi-Fermi Level Splitting of Perovskite Solar Cells by Universal Dual-Functional Polymer</a></li>
<li><span style="color: #ff6600; font-weight: bold;">材料优化</span>研究人员通过引入多功能聚合物添加剂来钝化钙钛矿薄膜中的缺陷，显著提升了QFLS。例如，青岛能源研究所的研究显示，通过引入一种通用的多功能聚合物添加剂，可以同时钝化阳离子和阴离子缺陷，从而将钙钛矿薄膜的QFLS提升至接近Shockley-Queisser极限的95.5%。资料来源：<a style="text-decoration: none;" href="https://doi.org/10.1002/adma.202310962" target="_blank" rel="noopener">Enhanced Quasi-Fermi Level Splitting of Perovskite Solar Cells by Universal Dual-Functional Polymer</a>另一项研究则通过调整钙钛矿层的结构来提升QFLS。例如，通过设计2D/3D钙钛矿结构，研究人员成功实现了更高的QFLS和更低的非辐射复合损失。这种结构的量子限域效应有助于提升电子和空穴的分离效率，从而提高整体器件性能。资料来源：<a style="text-decoration: none;" href="https://doi.org/10.1016/j.solener.2024.113144" target="_blank" rel="noopener">Achieving Quasi-Fermi level splitting near its radiative limit in efficient and stable 2D/3D perovskite solar Cells: Detailed balance model</a></li>
</ul>
<h3 id="loss-analysis" style="font-size: 20px; font-weight: bold;">光伏器件损耗分析中的QFLS</h3>
<ul>
<li><span style="color: #ff6600; font-weight: bold;">损耗来源诊断</span>QFLS是分析光伏器件内部能量损耗的重要工具。例如，通过比较QFLS与理论辐射极限的差距，可以量化非辐射复合损失。研究表明，界面处的能量损失是限制QFLS的主要因素之一。例如，在钙钛矿太阳能电池中，界面缺陷和能带不匹配会导致显著的非辐射复合损失。</li>
<li><span style="color: #ff6600; font-weight: bold;" <br="">
</span></li></ul>						</div>
				</div>
				<div class="elementor-element elementor-element-6199571 elementor-widget elementor-widget-html" data-id="6199571" data-element_type="widget" data-widget_type="html.default">
				<div class="elementor-widget-container">
			<style>
/* --- QFLS FAQ 样式表 (简体中文版 / Div-based structure) --- */

/* 1. 外框容器 */
.qfls-faq-container {
    background: #F9FCFF; /* 极淡的蓝白色背景 */
    padding: 30px;
    border-radius: 8px;
    margin-top: 40px;
    margin-bottom: 40px;
    border-left: 5px solid #145C9C; /* Primary Color */
}

/* 2. FAQ 目录区块 */
.qfls-faq-toc {
    background: #fff;
    padding: 20px;
    border: 1px solid #dae5ee;
    border-radius: 5px;
    margin-bottom: 30px;
}

/* 模拟 H3 的目录标题 */
.qfls-faq-toc-title {
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 22px;
    font-weight: bold;
    color: #145C9C; /* Primary Color */
    line-height: 1.4;
}

.qfls-faq-toc ol {
    padding-left: 20px;
    margin-bottom: 0;
    columns: 2; /* 电脑版双栏 */
    -webkit-columns: 2;
    -moz-columns: 2;
}

.qfls-faq-toc li {
    margin-bottom: 8px;
    color: #145C9C;
}

.qfls-faq-toc a {
    color: #333;
    text-decoration: none;
    transition: color 0.2s;
}

.qfls-faq-toc a:hover {
    color: #42B3CC; /* Secondary Color */
    text-decoration: none;
}

/* 3. 问答列表区块 */
.qfls-faq-item {
    margin-bottom: 30px;
    border-bottom: 1px solid #dae5ee; /* 浅蓝灰线条 */
    padding-bottom: 20px;
}

.qfls-faq-item:last-child {
    border-bottom: none;
}

/* 模拟 H3 的分类标题 */
.qfls-category-title {
    font-size: 20px;
    font-weight: bold;
    color: #333;
    border-left: 4px solid #42B3CC; /* Secondary Color */
    padding-left: 12px;
    margin-bottom: 20px;
    margin-top: 40px;
    line-height: 1.4;
}

/* 模拟 H4 的问题标题 */
.qfls-faq-question {
    font-size: 18px;
    font-weight: bold;
    color: #145C9C; /* Primary Color */
    margin-bottom: 15px;
    display: block;
    /* 解决锚点被 Header 遮挡的问题 */
    padding-top: 100px; 
    margin-top: -100px; 
}

/* 4. 答案内容 */
.qfls-faq-answer {
    color: #444;
    line-height: 1.6;
    font-size: 16px;
}

.qfls-faq-answer strong {
    color: #145C9C; /* Primary Color */
    display: block;
    margin-bottom: 8px;
    font-weight: 700;
}

/* 5. 延伸阅读按钮区 */
.qfls-read-more {
    font-size: 14px;
    margin-top: 15px;
    padding: 12px;
    background: #EBF6F9; /* 极淡的 Secondary Color */
    border-radius: 4px;
    color: #555;
    border-left: 3px solid #42B3CC; /* Secondary Color */
}

.qfls-read-more a {
    color: #145C9C; /* Primary Color */
    text-decoration: none;
    font-weight: bold;
    margin-right: 10px;
    border-bottom: 1px dotted #145C9C;
}

.qfls-read-more a:hover {
    color: #42B3CC; /* Secondary Color */
    border-bottom: 1px solid #42B3CC;
}

/* 手机版调整 */
@media (max-width: 768px) {
    .qfls-faq-toc ol {
        columns: 1;
    }
}
</style>

<div class="qfls-faq-container" id="faq">
    
    <!-- FAQ 目录 (使用 div 模拟标题，避免 TOC 插件抓取) -->
    <div class="qfls-faq-toc">
        <h2 class="qfls-faq-toc-title">FAQ：QFLS 技术详解与测量指南</h2>
        <ol>
            <li><a href="#faq-01">QFLS 是什么？</a></li>
            <li><a href="#faq-02">QFLS 和 Voc 有什么差别？</a></li>
            <li><a href="#faq-03">为什么 QFLS 常被称为 Implied Voc？</a></li>
            <li><a href="#faq-04">QFLS 的基本物理图像是什么？</a></li>
            <li><a href="#faq-05">QFLS 的核心公式有哪些？</a></li>
            <li><a href="#faq-06">QFLS 能拿来做什么决策？</a></li>
            <li><a href="#faq-07">有哪些测量方法可以得到 QFLS？</a></li>
            <li><a href="#faq-08">QFLS 和 PLQY 的关系是什么？</a></li>
            <li><a href="#faq-09">什么情况下用 PLQY 推算 QFLS 会失真？</a></li>
            <li><a href="#faq-10">测量 QFLS 最常见的误差来源有哪些？</a></li>
            <li><a href="#faq-11">“1 sun 等效”在 QFLS 测量中该如何定义？</a></li>
            <li><a href="#faq-12">为什么光强依赖测试很重要？</a></li>
            <li><a href="#faq-13">什么是 Pseudo J-V (Implied J-V)？</a></li>
            <li><a href="#faq-14">如何利用 QFLS 进行材料 vs 界面的损耗拆解？</a></li>
            <li><a href="#faq-15">QFLS 能用来估算效率上限吗？</a></li>
            <li><a href="#faq-16">QFLS Mapping（空间解析）有什么价值？</a></li>
            <li><a href="#faq-17">为什么收光条件会改变 PLQY/QFLS 读数？</a></li>
            <li><a href="#faq-18">测量前需要让样品达到稳态吗？</a></li>
            <li><a href="#faq-19">QFLS 高就代表器件效率一定高吗？</a></li>
            <li><a href="#faq-20">在论文或报告中，如何呈现 QFLS 具说服力？</a></li>
        </ol>
    </div>

    <!-- FAQ 内容区 -->
    <div class="qfls-faq-list">
        
        <!-- 分类标题 1 (使用 div 模拟) -->
        <div class="qfls-category-title" style="margin-top: 0;">1. 基础原理与物理意义</div>

        <div class="qfls-faq-item">
            <!-- 问题标题 (使用 div 模拟) -->
            <div id="faq-01" class="qfls-faq-question">Q1：QFLS 是什么？它在太阳能电池中代表什么意义？</div>
            <div class="qfls-faq-answer">
                <strong>核心定义：QFLS（准费米能级分裂）代表材料在光照下的“内部电压上限”，直接反映了材料內部的非辐射复合损耗。</strong>
                <p>在热平衡状态下，半导体的费米能级是统一的。当受到光照激发产生电子与空穴后，两者会分别建立自己的“准费米能级”（Quasi-Fermi Levels）。这两者之间的能量差即为 QFLS。对于研发人员来说，QFLS 是评估材料本征质量（Quality）与界面钝化效果的关键指标。QFLS 越高，代表光生载流子越不易通过缺陷复合（非辐射复合），材料的开路电压潜力就越高。</p>
                <div class="qfls-read-more">
                    延伸阅读：<a href="#intro">前言</a> | <a href="#concept-definition">基本概念</a> | <a href="#faq">回到目录</a>
                </div>
            </div>
        </div>

        <div class="qfls-faq-item">
            <div id="faq-02" class="qfls-faq-question">Q2：QFLS 和 Voc（开路电压）有什么差别？为什么数值常不一致？</div>
            <div class="qfls-faq-answer">
                <strong>核心结论：QFLS 是材料内部的“理论电压”，Voc 是器件端子输出的“外部电压”。两者的落差通常源自接触层（Contact）的选择性不足或传输电阻。</strong>
                <p>理想状况下，器件的 V<sub>OC</sub> 应极度接近 QFLS。然而实际测量中常出现 V<sub>OC</sub> < QFLS 的现象，这通常指向：接触选择性不佳（Poor Selectivity）、界面能垒（Energy Barrier）或串联电阻过大。若 QFLS 与 V<sub>OC</sub> 同时偏低，则问题多半出在吸收层本身的质量或严重的界面复合。</p>
                <div class="qfls-read-more">
                    延伸阅读：<a href="#formulas">理论公式</a> | <a href="#applications">应用案例</a> | <a href="#faq">回到目录</a>
                </div>
            </div>
        </div>

        <div class="qfls-faq-item">
            <div id="faq-03" class="qfls-faq-question">Q3：为什么 QFLS 常被称为 "Implied Voc"（隐含开路电压）？</div>
            <div class="qfls-faq-answer">
                <strong>核心结论：因为 QFLS 对应了光生载流子的化学势差，等效于“理想接触条件下”器件能达到的最高 Voc。</strong>
                <p>将 QFLS 视为 Implied Voc (iVoc) 能帮助工程师进行“损耗分析（Loss Analysis）”：将“材料/界面质量问题”与“电极/传输层问题”拆开来看。如果 iVoc 很高但最终器件效率低，研发方向应调整为优化电极接触而非调整吸收层配方。</p>
                <div class="qfls-read-more">
                    延伸阅读：<a href="#formulas">理论公式</a> | <a href="#loss-analysis">损耗分析</a> | <a href="#faq">回到目录</a>
                </div>
            </div>
        </div>

        <div class="qfls-faq-item">
            <div id="faq-04" class="qfls-faq-question">Q4：QFLS 的基本物理图像是什么？</div>
            <div class="qfls-faq-answer">
                <strong>核心结论：它是电子准费米能级（E<sub>F,e</sub>）与空穴准费米能级（E<sub>F,h</sub>）之间的能量距离。</strong>
                <p>在黑暗中，半导体只有一个费米能级。光照下，电子被推向导带，空穴留在价带，两者浓度增加，导致描述它们分布概率的能级分开。这个分开的程度（Splitting）越大，代表载流子浓度越高，也就是电压越高。</p>
                <div class="qfls-read-more">
                    延伸阅读：<a href="#concept-definition">基本概念</a> | <a href="#faq">回到目录</a>
                </div>
            </div>
        </div>

        <div class="qfls-faq-item">
            <div id="faq-05" class="qfls-faq-question">Q5：QFLS 的核心公式有哪些？最常用到哪一条？</div>
            <div class="qfls-faq-answer">
                <strong>核心结论：最实用的是 QFLS = E<sub>F,e</sub> - E<sub>F,h</sub> 以及与 PLQY 关联的公式。</strong>
                <p>在实验室最常用来推算 QFLS 的公式是基于光致发光量子产率：QFLS ≈ V<sub>rad</sub> + kT/q * ln(PLQY)。这条公式直接链接了光学测量数据与电学参数。</p>
                <div class="qfls-read-more">
                    延伸阅读：<a href="#formulas">理论公式</a> | <a href="#plqy">PLQY 测量</a> | <a href="#faq">回到目录</a>
                </div>
            </div>
        </div>

        <!-- 分类标题 2 -->
        <div class="qfls-category-title">2. 测量技术与数据解读</div>

        <div class="qfls-faq-item">
            <div id="faq-06" class="qfls-faq-question">Q6：QFLS 能拿来做什么决策？</div>
            <div class="qfls-faq-answer">
                <strong>核心结论：用于区分是“材料不好”还是“器件结构不好”。</strong>
                <p>如果 QFLS 低，请回去优化薄膜结晶或钝化缺陷；如果 QFLS 高但电池效率低，请优化传输层（ETL/HTL）的能级匹配或电极制程。</p>
                <div class="qfls-read-more">
                    延伸阅读：<a href="#applications">应用案例</a> | <a href="#pv-evaluation">性能评估</a> | <a href="#faq">回到目录</a>
                </div>
            </div>
        </div>

        <div class="qfls-faq-item">
            <div id="faq-07" class="qfls-faq-question">Q7：有哪些测量方法可以得到 QFLS？</div>
            <div class="qfls-faq-answer">
                <strong>核心结论：主流的方法是通过“绝对光致发光（Absolute PL）”结合 PLQY 推算；亦可使用电致发光（EL）或 EQE 进行交叉验证。</strong>
                <p>利用详细平衡原理，发光强度与 QFLS 存在对数关系。实务上，通过积分球测量绝对光子通量（Photon Flux）与 PLQY，再扣除黑体辐射项即可回推 QFLS。</p>
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                    延伸阅读：<a href="#methods">测量计算方法</a> | <a href="#faq">回到目录</a>
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        <div class="qfls-faq-item">
            <div id="faq-08" class="qfls-faq-question">Q8：QFLS 和 PLQY 的关系是什么？</div>
            <div class="qfls-faq-answer">
                <strong>核心结论：PLQY（光致发光量子产率）越高，代表非辐射复合越少，推算出的 QFLS 就越高。</strong>
                <p>根据光电互易关系，电压损耗与 PLQY 的关系约为：ΔV = -kT/q × ln(PLQY)。这意味着 PLQY 每提升一个数量级（例如从 1% 提升到 10%），开路电压约可提升 60mV（在室温下）。</p>
                <div class="qfls-read-more">
                    延伸阅读：<a href="#plqy">PLQY 测量</a> | <a href="#methods">测量方法</a> | <a href="#faq">回到目录</a>
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        <div class="qfls-faq-item">
            <div id="faq-09" class="qfls-faq-question">Q9：什么情况下用 PLQY 推算 QFLS 会失真？</div>
            <div class="qfls-faq-answer">
                <strong>核心结论：当样品存在相分离、能量漏斗（Charge Funnelling）效应，或发光极度不均匀时。</strong>
                <p>特别是在混合卤素钙钛矿中，载流子会汇聚到低能隙区域发光，导致测量到的 PLQY 很高，但实际上整体的费米能级分裂并不均匀，无法代表真实的器件电压能力。此外，严重的光子再吸收若未经校正，也会影响计算准确度。</p>
                <div class="qfls-read-more">
                    延伸阅读：<a href="#corrections">影响因素与修正</a> | <a href="#practical-notes">注意事项</a> | <a href="#faq">回到目录</a>
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        <div class="qfls-faq-item">
            <div id="faq-10" class="qfls-faq-question">Q10：测量 QFLS 最常见的误差来源有哪些？</div>
            <div class="qfls-faq-answer">
                <strong>核心结论：主要误差源通常是“光功率/光谱校准”与“收光几何（Solid Angle）”，其次是背景扣除与样品反射率估算。</strong>
                <p>激发光强度的微小偏差会直接影响载流子密度。积分球开口大小、样品摆放角度会改变侦测到的光子数。此外，若在样品未达稳态（如离子迁移尚未平衡）时读值，数据将不可靠。</p>
                <div class="qfls-read-more">
                    延伸阅读：<a href="#corrections">影响因素</a> | <a href="#practical-notes">注意事项</a> | <a href="#faq">回到目录</a>
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        <div class="qfls-faq-item">
            <div id="faq-11" class="qfls-faq-question">Q11：“1 sun 等效”在 QFLS 测量中该如何定义？</div>
            <div class="qfls-faq-answer">
                <strong>核心结论：应以“实际产生的载流子数（Generation Rate）”为基准，而非单纯看入射光功率。</strong>
                <p>不同激光波长在材料中的穿透深度不同。若要模拟 AM1.5G 1 sun 条件，必须根据样品的吸收光谱调整激光强度，使其产生的短路电流密度（J<sub>sc</sub>）与标准太阳光下一致。</p>
                <div class="qfls-read-more">
                    延伸阅读：<a href="#plqy">PLQY 测量</a> | <a href="#practical-notes">注意事项</a> | <a href="#faq">回到目录</a>
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        <div class="qfls-faq-item">
            <div id="faq-12" class="qfls-faq-question">Q12：为什么光强依赖测试很重要？</div>
            <div class="qfls-faq-answer">
                <strong>核心结论：QFLS 随光强变化的斜率（Ideality Factor, n）能揭示主导的复合机制。</strong>
                <p>单点测量只能看到结果，光强扫描能看到过程。斜率接近 1 代表理想辐射复合；斜率接近 2 代表 SRH 陷阱辅助复合主导（缺陷多）；斜率异常则可能存在严重的界面问题。</p>
                <div class="qfls-read-more">
                    延伸阅读：<a href="#methods">测量方法</a> | <a href="#pseudo-jv">Pseudo J-V</a> | <a href="#faq">回到目录</a>
                </div>
            </div>
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        <div class="qfls-faq-item">
            <div id="faq-13" class="qfls-faq-question">Q13：什么是 Pseudo J-V (Implied J-V)？它能解决什么问题？</div>
            <div class="qfls-faq-answer">
                <strong>核心结论：Pseudo J-V 利用光学信号模拟出“不受串联电阻影响”的理想 J-V 曲线。</strong>
                <p>当实体器件的填充因子（FF）很差时，很难判断是材料质量差还是电极没做好。Pseudo J-V 曲线排除了串联电阻的影响。如果 Pseudo FF 很高但实测 FF 很低，即可断定问题出在传输层电导率或电极接触。</p>
                <div class="qfls-read-more">
                    延伸阅读：<a href="#pseudo-jv">Pseudo J-V 曲线</a> | <a href="#faq">回到目录</a>
                </div>
            </div>
        </div>
        
        <!-- 分类标题 3 -->
        <div class="qfls-category-title">3. 实务应用与进阶分析</div>

        <div class="qfls-faq-item">
            <div id="faq-14" class="qfls-faq-question">Q14：如何利用 QFLS 进行“材料 vs 界面”的损耗拆解？</div>
            <div class="qfls-faq-answer">
                <strong>核心结论：通过比较“纯薄膜”与“薄膜+传输层”的 QFLS 差异，可精准定位界面复合损耗。</strong>
                <p>首先测量裸钙钛矿薄膜的 QFLS（基准值），接着沉积电子传输层（ETL）或空穴传输层（HTL）后再次测量。若 QFLS 显著下降，代表该界面引入了严重的非辐射复合缺陷；若 QFLS 上升，则代表该层具备表面钝化效果。</p>
                <div class="qfls-read-more">
                    延伸阅读：<a href="#pv-evaluation">性能评估</a> | <a href="#loss-analysis">损耗分析</a> | <a href="#faq">回到目录</a>
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        <div class="qfls-faq-item">
            <div id="faq-15" class="qfls-faq-question">Q15：QFLS 能用来估算效率上限（Implied PCE）吗？</div>
            <div class="qfls-faq-answer">
                <strong>核心结论：可以。结合 QFLS 与光学模拟的极限电流、理想填充因子，可估算材料的潜在效率。</strong>
                <p>这是一种“早期快筛”技术。在投入繁琐的后段制程之前，先确认材料本身的 Implied PCE 是否达标。如果材料端的 Implied PCE 只有 20%，就不可能做出 22% 的电池，能有效节省研发资源。</p>
                <div class="qfls-read-more">
                    延伸阅读：<a href="#pv-evaluation">性能评估</a> | <a href="#loss-analysis">损耗分析</a> | <a href="#faq">回到目录</a>
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        <div class="qfls-faq-item">
            <div id="faq-16" class="qfls-faq-question">Q16：QFLS Mapping（空间解析）有什么价值？</div>
            <div class="qfls-faq-answer">
                <strong>核心结论：Mapping 能抓出“平均值”掩盖的局部缺陷，如涂布条纹、边缘效应或隐形裂纹。</strong>
                <p>单点测量容易以偏概全。QFLS Mapping 能生成“电压分布图”，直观显示哪里是“死区（Dead Zone）”或“热点（Hotspot）”，这在良率提升阶段比单纯看效率更有指导意义。</p>
                <div class="qfls-read-more">
                    延伸阅读：<a href="#pv-evaluation">性能评估</a> | <a href="#applications">应用案例</a> | <a href="#faq">回到目录</a>
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        <div class="qfls-faq-item">
            <div id="faq-17" class="qfls-faq-question">Q17：为什么收光条件会改变 PLQY/QFLS 读数？</div>
            <div class="qfls-faq-answer">
                <strong>核心结论：因为 PL 是各向同性发光，探测器只能收到一部分光子。几何结构改变会直接影响“光子计数”。</strong>
                <p>样品表面的粗糙度会改变出光效率，积分球的反射率与开口率也会影响收光固角。若未进行严格的光谱校准与几何因子修正，不同机台的测量数据将不具备可比性。</p>
                <div class="qfls-read-more">
                    延伸阅读：<a href="#corrections">修正项</a> | <a href="#practical-notes">注意事项</a> | <a href="#faq">回到目录</a>
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        <div class="qfls-faq-item">
            <div id="faq-18" class="qfls-faq-question">Q18：测量前需要让样品达到稳态吗？</div>
            <div class="qfls-faq-answer">
                <strong>核心结论：绝对需要。钙钛矿材料具有离子迁移与光浸润效应，需等待信号稳定。</strong>
                <p>许多高效钙钛矿在刚照光的前几秒到几分钟内，PL 强度会发生剧烈变化。建议设定固定的“预照时间”与“追踪时间”，直到信号变异率低于特定阈值再取样。</p>
                <div class="qfls-read-more">
                    延伸阅读：<a href="#practical-notes">注意事项</a> | <a href="#faq">回到目录</a>
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        <div class="qfls-faq-item">
            <div id="faq-19" class="qfls-faq-question">Q19：QFLS 高就代表器件效率一定高吗？</div>
            <div class="qfls-faq-answer">
                <strong>核心结论：不一定。QFLS 高只表明了“材料好”，不代表“电路通”。</strong>
                <p>QFLS 仅代表热力学上限。如果传输层能级不匹配、电极接触电阻太高，或者薄膜存在针孔导致漏电，即使 QFLS 很高，最终的器件效率（PCE）仍可能很低。因此 QFLS 必须搭配 J-V 曲线与 FF 分析一起看。</p>
                <div class="qfls-read-more">
                    延伸阅读：<a href="#loss-analysis">损耗分析</a> | <a href="#conclusion">结论</a> | <a href="#faq">回到目录</a>
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        <div class="qfls-faq-item">
            <div id="faq-20" class="qfls-faq-question">Q20：在论文或报告中，如何呈现 QFLS 具说服力？</div>
            <div class="qfls-faq-answer">
                <strong>核心结论：采用“多维度对比”：同时呈现 QFLS、实测 Voc、PLQY 以及光强依赖性分析。</strong>
                <p>单一数据容易被质疑。具说服力的论证方式是：展示 QFLS 与 Voc 的差距（归因接触损耗）、展示 PLQY 与 QFLS 的对应关系（验证理论一致性）、附上 Ideality Factor（佐证复合机制改善）。</p>
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                    延伸阅读：<a href="#conclusion">结论</a> | <a href="#loss-analysis">损耗分析</a> | <a href="#faq">回到目录</a>
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		<p>這篇文章 <a href="https://enlitechsy.com/qfls-quasi-fermi-level-splitting-principle-application/">QFLS准费米能级分裂技术指南：评估光伏材料性能上限 太阳能电池性能表征与效率提升的关键参数分析</a> 最早出現於 <a href="https://enlitechsy.com">胜焱电子科技-光焱科技 ENLITECH</a>。</p>
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		<title>中国科学院朱晓张团队 实现 20.2%高效率有机太阳能电池，不对称结构和苯基取代烷基侧链的非富勒烯受体</title>
		<link>https://enlitechsy.com/the-team-led-by-zhu-xiaozhang-at-the-chinese-academy-of-sciences-achieved-20-2-efficiency-in-organic-solar-cells-using-non-fullerene-acceptors-with-asymmetric-structures-and-phenyl-substituted-alkyl-s/</link>
					<comments>https://enlitechsy.com/the-team-led-by-zhu-xiaozhang-at-the-chinese-academy-of-sciences-achieved-20-2-efficiency-in-organic-solar-cells-using-non-fullerene-acceptors-with-asymmetric-structures-and-phenyl-substituted-alkyl-s/#respond</comments>
		
		<dc:creator><![CDATA[廖, 婉清]]></dc:creator>
		<pubDate>Tue, 30 Jul 2024 04:45:53 +0000</pubDate>
				<category><![CDATA[PV Application]]></category>
		<category><![CDATA[FTPS]]></category>
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					<description><![CDATA[<p>内容 中国科学院朱晓张团队 实现 20.2%高效率有机太阳能电池，不对称结构和苯基取代烷基侧链的非富勒烯受体  [&#8230;]</p>
<p>這篇文章 <a href="https://enlitechsy.com/the-team-led-by-zhu-xiaozhang-at-the-chinese-academy-of-sciences-achieved-20-2-efficiency-in-organic-solar-cells-using-non-fullerene-acceptors-with-asymmetric-structures-and-phenyl-substituted-alkyl-s/">中国科学院朱晓张团队 实现 20.2%高效率有机太阳能电池，不对称结构和苯基取代烷基侧链的非富勒烯受体</a> 最早出現於 <a href="https://enlitechsy.com">胜焱电子科技-光焱科技 ENLITECH</a>。</p>
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			<h1 class="elementor-heading-title elementor-size-default"><a href="https://enlitechsy.com/product/ftps/"><h1 class="elementor-heading-title elementor-size-default elementor-inline-editing pen" style="font-family: Roboto, sans-serif; font-weight: 600; outline-style: initial; outline-width: 0px;" data-elementor-setting-key="title" data-pen-placeholder="在此输入..."><span style="font-size: 24pt;"><strong>中国科学院朱晓张团队 实现 20.2%高效率有机太阳能电池，不对称结构和苯基取代烷基侧链的非富勒烯受体</strong></span></h1></a></h1>		</div>
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							<h2 style="text-align: center;"><span style="font-size: 14pt;"><span style="font-size: 24pt;"><strong><span style="color: #008080;">研究亮点</span></strong></span>​</span></h2><hr /><p> </p><p> </p><ol><li><span style="font-size: 12pt;"><strong><span style="color: #ff6600;">背景简述</span></strong>：对于有机太阳能电池（OSCs）来说，要与 Shockley–Queisser 极限接轨，需要通过分子设计和器件工程同时降低能量损失以获得较高的开路电压，改善光利用以增强短路电流密度，并保持理想的纳米形态以获得较高的填充因子。</span></li><li><span style="font-size: 12pt;"><strong><span style="color: #ff6600;">研究手法</span></strong>：研究团队设计并合成了一种具有链接苯基的非对称非富勒烯受体（Z8），以建立三元有机太阳能电池中的合金受体。非对称结构最小化了非辐射能量损失和由电子激子的电荷复合引起的现象。</span></li><li><span style="font-size: 12pt;"><span style="color: #ff6600;"><strong>影响效果</strong></span>：苯基取代的烷基侧链对分子间作用有影响，改善了薄膜纳米形态，使激子解离效率提高并减少了电荷复合。</span></li><li><span style="font-size: 12pt;"><span style="color: #ff6600;"><strong>研究成果</strong></span>：研究团队达成了基于 D18:Z8:L8-BO 三元混合物的有机太阳能电池，其效率为 20.2％（经认证为 19.8％）。</span></li><li><span style="font-size: 12pt;"><span style="color: #ff6600;"><strong>验证</strong></span>：通过理论计算，我们检验了光子和载流子损失的整体分布，并分析了在开路电压、短路电流密度和填充因子方面改善的潜力 。</span></li></ol><h2 style="text-align: center;"><span style="color: #008080; font-size: 24pt;"><strong>引言</strong></span></h2><hr /><p><br /><span style="font-size: 12pt;">在有机太阳能电池（OSCs）的研究领域中，要达到与Shockley–Queisser极限相匹配的性能，需要通过精细的分子设计和器件工程来同时降低能量损失、提高开路电压、增强光电转换效率以及优化纳米结构。这项研究中，研究团队成功设计并合成了一种新型非对称非富勒烯受体Z8，其特点是具有链接苯基，这有助于在三元有机太阳能电池中形成合金受体，从而最小化非辐射能量损失和电荷复合。此外，苯基取代的烷基侧链对分子间作用产生了积极影响，改善了薄膜的纳米形态，提高了激子解离效率，并减少了电荷复合。这些改进导致了基于D18:Z8:L8-BO三元混合物的有机太阳能电池达到了20.2%的高效率，经过认证后为19.8%，并将研究成果发表在Nature Energy。通过理论计算，研究团队还检验了光子和载流子损失的整体分布，并分析了在开路电压、短路电流密度和填充因子方面的改进潜力，这些都是推动OSCs向前发展的关键因素。这项研究不仅展示了通过分子工程和器件设计可以显著提升有机太阳能电池性能的可能性，也为未来的研究提供了宝贵的参考。</span></p>						</div>
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															<img loading="lazy" decoding="async" width="666" height="641" src="https://enlitechsy.com/wp-content/uploads/2024/07/FigS13-3.jpg" class="attachment-medium_large size-medium_large wp-image-8271" alt="FigS13" srcset="https://enlitechsy.com/wp-content/uploads/2024/07/FigS13-3.jpg 666w, https://enlitechsy.com/wp-content/uploads/2024/07/FigS13-3-300x289.jpg 300w, https://enlitechsy.com/wp-content/uploads/2024/07/FigS13-3-600x577.jpg 600w" sizes="(max-width: 666px) 100vw, 666px" />															</div>
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							<p><span style="font-size: 12pt;"><strong><span style="color: #ff0000;">研究团队透一种具有链接苯基的非对称非富勒烯受体（Z8），以建立三元有机太阳能电池中的合金受体。非对称结构最小化了非辐射能量损失和由电子激子的电荷复合引起的现象</span></strong></span></p><ol><li><span style="font-size: 12pt;"><strong><span style="color: #008080;">改善结晶性和形态</span></strong> </span><br /><span style="font-size: 12pt;"><span style="color: #333333;"><strong>增强结晶性</strong></span>：将Z8纳入D18：L8-BO混合物中导致结晶性增强，如更强的衍射强度和更窄的TI-TI堆叠峰所证实。</span><br /><span style="font-size: 12pt;">原文引述：“将Z型受体纳入D18：L8-BO有助于增强结晶性，如更强的（010）和（100）衍射强度和扩大的CCLs。”</span></li><li><span style="font-size: 12pt;"><strong><span style="color: #008080;">统计分析和长期稳定性</span></strong></span><br /><span style="font-size: 12pt;"><strong>全面测试和分析</strong>：对30多个器件进行了测试，并包括了对它们性能的统计分析。最佳器件在氮气填充室内进行了持续照明下的最大功率点（MPP）跟踪的长期稳定性评估。</span><br /><span style="font-size: 12pt;">原文引述：“我们在这项研究中测试了30多个器件。我们对性能进行了统计分析，包含在手稿中。表1显示了最佳和平均效率以及标准偏差。最佳D18：Z8：L8-BO器件在最大功率点（MPP）跟踪下在氮气填充室内进行了持续照明的长期稳定性测试，如附录图18所示。”</span></li><li><span style="font-size: 12pt;"><span style="color: #008080;"><strong>减少光子和载流子损失</strong></span> </span><br /><span style="font-size: 12pt;"><strong>高效的电荷管理</strong>：使用Z8作为NFA有助于减少光子和载流子损失，促进电荷转移并最小化电荷复合。  </span><br /><span style="font-size: 12pt;">原文引述：“Z8中的连接苯基团可参与分子内和分子间相互作用，影响受体：受体和给体：受体的分子间相互作用。两种NFAs Z8和L8-BO可以形成合金受体，有助于通过与聚合物给体D18混合形成有利的纳米形态，包括适当的相分离、垂直组分分布和增强结晶度。</span></li></ol>						</div>
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															<img loading="lazy" decoding="async" width="667" height="436" src="https://enlitechsy.com/wp-content/uploads/2024/07/FigS21-3.jpg" class="attachment-medium_large size-medium_large wp-image-8272" alt="FigS21" srcset="https://enlitechsy.com/wp-content/uploads/2024/07/FigS21-3.jpg 667w, https://enlitechsy.com/wp-content/uploads/2024/07/FigS21-3-300x196.jpg 300w, https://enlitechsy.com/wp-content/uploads/2024/07/FigS21-3-600x392.jpg 600w" sizes="(max-width: 667px) 100vw, 667px" />															</div>
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															<img loading="lazy" decoding="async" width="679" height="352" src="https://enlitechsy.com/wp-content/uploads/2024/07/FigS15-2.jpg" class="attachment-medium_large size-medium_large wp-image-8273" alt="FigS15" srcset="https://enlitechsy.com/wp-content/uploads/2024/07/FigS15-2.jpg 679w, https://enlitechsy.com/wp-content/uploads/2024/07/FigS15-2-300x156.jpg 300w, https://enlitechsy.com/wp-content/uploads/2024/07/FigS15-2-600x311.jpg 600w" sizes="(max-width: 679px) 100vw, 679px" />															</div>
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							<p><span style="color: #ff0000; font-size: 12pt;"><strong>研究团队共采用以下6种方法来验证 D18:Z8:L8-BO 三元混合物的有机太阳能电池对于减少光子和载流子损失贡献</strong></span></p><ul><li style="list-style-type: none;"><ul style="list-style-type: square;"><li><span style="font-size: 12pt;"><strong>能量损失分析</strong></span></li><li><span style="font-size: 12pt;"><strong>载流子动态分析  </strong></span></li><li><span style="font-size: 12pt;"><strong>载流子移动率测量  </strong></span></li><li><span style="font-size: 12pt;"><strong>薄膜形态和结构分析  </strong></span></li><li><span style="font-size: 12pt;"><strong>分子动力学模拟  </strong></span></li><li><span style="font-size: 12pt;"><strong>光电性能测试</strong></span></li></ul></li></ul><p><span style="font-size: 12pt;">其中透过进行<strong>能量损失分析</strong>可以</span></p><ol><li><span style="color: #008080; font-size: 12pt;"><strong>深入了解高开路电压（Voc）</strong></span><br /><span style="font-size: 12pt;">研究团队希望通过能量损耗分析来深入了解基于Z8的三元有机太阳能电池（OSCs）中实现的高开路电压（Voc）。这对于理解和优化太阳能电池的性能至关重要。</span></li><li><span style="font-size: 12pt;"><strong><span style="color: #008080;">识别能量损耗的主要组成</span></strong></span><br /><span style="font-size: 12pt;">能量损耗（Eloss）可以分为三部分：辐射损失（AE1）、带隙以下的辐射损失（AE2）和非辐射能量损失（AE3）。通过详细的能量损耗分析，研究团队可以识别这些组成部分，并针对性地进行优化。</span></li><li><span style="color: #008080; font-size: 12pt;"><strong>减少能量无序和陷阱密度</strong></span><br /><span style="font-size: 12pt;">研究结果表明，Z8的引入可以有效减少能量无序和陷阱密度，从而降低能量损失。这对于提高OSCs的整体性能至关重要。</span></li></ol><p><span style="font-size: 12pt;">研究团队为了深入了解基于Z8的三元有机太阳能电池（OSCs）中实现的高开路电压（Voc），进行了一项详细的能量损失（Eloss）分析。相关数据在底下中展示</span></p>						</div>
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															<img loading="lazy" decoding="async" width="768" height="486" src="https://enlitechsy.com/wp-content/uploads/2024/07/Energy-loss-768x486.jpg" class="attachment-medium_large size-medium_large wp-image-8276" alt="Energy loss" srcset="https://enlitechsy.com/wp-content/uploads/2024/07/Energy-loss-768x486.jpg 768w, https://enlitechsy.com/wp-content/uploads/2024/07/Energy-loss-300x190.jpg 300w, https://enlitechsy.com/wp-content/uploads/2024/07/Energy-loss-600x380.jpg 600w, https://enlitechsy.com/wp-content/uploads/2024/07/Energy-loss.jpg 795w" sizes="(max-width: 768px) 100vw, 768px" />															</div>
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							<p><span style="font-size: 12pt;">计算了D18、D18和D18二元OSCs的能量损失（Eloss），分别为0.50、0.51和0.53 eV。对于D18:Z7和D18:Z8三元OSCs，Eloss值分别为0.52和0.51 eV。这些三元OSCs的能量损失低于基于D18的二元OSCs。</span></p><p><span style="font-size: 12pt;">根据详细平衡理论，Eloss可以分为三部分：Eloss = q(AVsQ + AVr + AVnr)，其中AE1是带隙以上的辐射损失，来自于Shockley-Queisser（S-Q）极限；AE2和AE3分别是带隙以下的辐射和非辐射能量损失。研究中，AE1值为0.26-0.27 eV，二元OSCs的AE2值为0.06 eV，而Z8基三元OSCs的AE2值减小至0.05 eV，这归因于带尾态能量无序的减少。 </span></p><p><span style="font-size: 12pt;">能量损失（𝐸𝑙𝑜𝑠𝑠）可以分为三个部分： </span></p><p><span style="font-size: 12pt;"><strong><span style="color: #ff6600;">∆E1</span></strong>：带隙（𝐸𝑔）与开路电压（𝑉𝑂𝐶）之间的差异，这部分损失与材料的带隙和开路电压有关。 </span></p><p><span style="font-size: 12pt;"><span style="color: #ff6600;"><strong>∆E2</strong></span>：开路电压与辐射电压（𝑉𝑂𝐶𝑟𝑎𝑑）之间的差异，这部分损失与非辐射复合过程有关。 </span></p><p><span style="font-size: 12pt;"><strong><span style="color: #ff6600;">∆E3</span></strong>：辐射电压与实际电压（𝑉𝑂𝐶）之间的差异，这部分损失与载流子再结合和电荷提取效率有关。 </span></p><p><span style="font-size: 12pt;">在补充图21b-f中，D18:Z8显示出<strong><u>最低的Urbach能量（Eu）值为22.8 meV</u></strong>，表明引入Z8可以有效减少能量无序，不仅有助于降低Eloss，还能帮助减少陷阱密度和限制电荷复合。此外，阻抗和电容-电压测量结果显示，三元OSCs的陷阱密度（N）降低，其中基于D18:Z8的三元电池的陷阱密度最低，为6.33 x 10^21 m^-3。</span></p>						</div>
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															<img loading="lazy" decoding="async" width="732" height="480" src="https://enlitechsy.com/wp-content/uploads/2024/07/FigS21_2.jpg" class="attachment-medium_large size-medium_large wp-image-8277" alt="" srcset="https://enlitechsy.com/wp-content/uploads/2024/07/FigS21_2.jpg 732w, https://enlitechsy.com/wp-content/uploads/2024/07/FigS21_2-300x197.jpg 300w, https://enlitechsy.com/wp-content/uploads/2024/07/FigS21_2-600x393.jpg 600w" sizes="(max-width: 732px) 100vw, 732px" />															</div>
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							<p><span style="font-size: 12pt;"><strong>Supplementary Figure 21</strong>展示了二元和三元有机太阳能电池（OSCs）的详细平衡效率损失。 </span></p><p><span style="font-size: 12pt;">(a) 展示了电致发光量子效率（EQEEL）的结果，用于计算能量损失中的∆E3部分。 </span></p><p><span style="font-size: 12pt;">(b-f) 展示了傅里叶转换光谱（FTPS-EQE）的结果，用于分析能量损失中的Urbach能量（Eu）。Urbach能量是从FTPS-EQE曲线中的指数拟合获得的，其公式为α(E) = α0 ∙ exp((E &#8211; Eg)/Eu)。 </span></p>						</div>
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							<p><span style="font-size: 12pt;"><span class="TextRun SCXW200179740 BCX8" lang="ZH-CN" xml:lang="ZH-CN" data-contrast="auto"><span class="NormalTextRun SCXW200179740 BCX8">要获得傅里叶转换光谱（</span></span><span class="TextRun SCXW200179740 BCX8" lang="EN-US" xml:lang="EN-US" data-contrast="auto"><span class="NormalTextRun SCXW200179740 BCX8">FTPS-EQE</span></span><span class="TextRun SCXW200179740 BCX8" lang="ZH-CN" xml:lang="ZH-CN" data-contrast="auto"><span class="NormalTextRun SCXW200179740 BCX8">）的结果，用于分析能量损失中的</span></span><span class="TextRun SCXW200179740 BCX8" lang="EN-US" xml:lang="EN-US" data-contrast="auto"><span class="NormalTextRun SCXW200179740 BCX8">Urbach</span></span><span class="TextRun SCXW200179740 BCX8" lang="ZH-CN" xml:lang="ZH-CN" data-contrast="auto"><span class="NormalTextRun SCXW200179740 BCX8">能量（</span></span><span class="TextRun SCXW200179740 BCX8" lang="EN-US" xml:lang="EN-US" data-contrast="auto"><span class="NormalTextRun SCXW200179740 BCX8">Eu</span></span><span class="TextRun SCXW200179740 BCX8" lang="ZH-CN" xml:lang="ZH-CN" data-contrast="auto"><span class="NormalTextRun SCXW200179740 BCX8">）与</span></span><span class="TextRun SCXW200179740 BCX8" lang="ZH-CN" xml:lang="ZH-CN" data-contrast="auto"><span class="NormalTextRun SCXW200179740 BCX8">  </span></span><span class="TextRun SCXW200179740 BCX8" lang="EN-US" xml:lang="EN-US" data-contrast="auto"><span class="NormalTextRun SCXW200179740 BCX8">∆</span></span><span class="TextRun SCXW200179740 BCX8" lang="EN-US" xml:lang="EN-US" data-contrast="auto"><span class="NormalTextRun SCXW200179740 BCX8">E2</span></span><span class="TextRun SCXW200179740 BCX8" lang="ZH-CN" xml:lang="ZH-CN" data-contrast="auto"><span class="NormalTextRun SCXW200179740 BCX8">时，研究团队采用了光焱科技</span></span><span class="TextRun SCXW200179740 BCX8" lang="EN-US" xml:lang="EN-US" data-contrast="auto"><span class="NormalTextRun SpellingErrorV2Themed SCXW200179740 BCX8">Enlitech</span><span class="NormalTextRun SCXW200179740 BCX8"> FTPS(PECT-600)</span></span><span class="TextRun SCXW200179740 BCX8" lang="ZH-CN" xml:lang="ZH-CN" data-contrast="auto"><span class="NormalTextRun SCXW200179740 BCX8">智能型傅立叶变换光电流测试仪进行量测。</span></span></span></p><p><span style="font-size: 12pt;">Urbach 能阶的定义是吸收随能量指数增加。吸收在吸收开始附近已知指数增加。 </span></p><p><span style="font-size: 12pt;">FTPS的软件可准确且具效率地取得Urbach能阶计算，跨越7 个数量级(10-5)。</span></p><h2 class="elementor-heading-title elementor-size-default elementor-inline-editing pen" style="text-align: center;" contenteditable="true" data-elementor-setting-key="title" data-pen-placeholder="在此输入..."><br /><br /><span style="font-size: 12pt;"><strong><span style="color: #008080;"><span style="font-size: 24pt;">FTPS 的工作原理</span>​</span></strong></span></h2><p> </p><hr /><p> </p><ul><li><span style="font-size: 12pt;"><span style="color: #ff6600;"><strong>光源照射：</strong></span>各波长单色光源照射在待测样品后，产生光电流。</span></li><li><span style="font-size: 12pt;"><span style="color: #ff6600;"><strong>信号处理：</strong></span>光电流经过电流放大器并由 A/D 转换讯号撷取。</span></li><li><span style="font-size: 12pt;"><span style="color: #ff6600;"><strong>频谱分析：</strong></span>进行快速傅立叶变换进行光电流的频谱分析。 </span></li><li><span style="font-size: 12pt;"><span style="color: #ff6600;"><strong>讯噪比提升：</strong></span>降低噪声、提升讯噪比，以有效侦测极弱的吸收讯号。</span></li></ul><p><span style="font-size: 12pt;">“FTPS Measurement” 量测流程，确认量测范围与间距后，即 开始进行 EQE 量测。 </span></p><p><span style="font-size: 12pt;"><b>进阶量测-拟合功能说明</b> </span><br /><span style="font-size: 12pt;">QE 数据导入&gt;量测资料选择&gt;Fitting 范围设置&gt; </span><br /><span style="font-size: 12pt;">进行拟合计算&gt;拟合计算结果显示于此 “Results”&gt;可按“Save”进行数据保存 </span></p>						</div>
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							<p style="text-align: left;"><span style="font-size: 12pt;"><span class="TextRun SCXW93289875 BCX8" lang="ZH-CN" xml:lang="ZH-CN" data-contrast="auto"><span class="NormalTextRun SCXW93289875 BCX8">此研究使用各项论证并通过详细的理论计算，呈现了</span></span><span class="TextRun SCXW93289875 BCX8" lang="EN-US" xml:lang="EN-US" data-contrast="auto"><span class="NormalTextRun SCXW93289875 BCX8"> OSCs </span></span><span class="TextRun SCXW93289875 BCX8" lang="ZH-CN" xml:lang="ZH-CN" data-contrast="auto"><span class="NormalTextRun SCXW93289875 BCX8">的光子和载流子损失的总体分布，分析了每个设备参数的改进潜力，这表明材料和设备的革新对进一步最小化光子和载流子损失至关重要。这些发现强调，光子损失和载流子损失应该得到社区的同等关注，这可能会推动</span></span><span class="TextRun SCXW93289875 BCX8" lang="EN-US" xml:lang="EN-US" data-contrast="auto"><span class="NormalTextRun SCXW93289875 BCX8"> OSCs </span></span><span class="TextRun SCXW93289875 BCX8" lang="ZH-CN" xml:lang="ZH-CN" data-contrast="auto"><span class="NormalTextRun SCXW93289875 BCX8">的光伏性能向效率极限发展。</span></span><span class="TextRun SCXW93289875 BCX8" lang="ZH-CN" xml:lang="ZH-CN" data-contrast="auto"><span class="NormalTextRun SCXW93289875 BCX8"> </span></span><span class="EOP SCXW93289875 BCX8" data-ccp-props="{&quot;134245417&quot;:false,&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:278}"> </span></span></p><p style="text-align: left;"><span class="EOP SCXW93289875 BCX8" style="font-size: 12pt;" data-ccp-props="{&quot;134245417&quot;:false,&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:278}"> </span></p><p><span style="font-size: 12pt;">使用<span style="color: #333333;"><strong>光焱科技</strong></span><span style="color: #333333;"><strong>Enlitech FTPS(PECT-600)</strong></span><span style="color: #333333;"><strong>智能型傅立叶变换光电流测试仪</strong></span>进行光伏研究刊载于顶刊中文章 </span></p><ol><li data-leveltext="%1." data-font="" data-listid="9" data-list-defn-props="{&quot;335552541&quot;:0,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769242&quot;:[65533,0],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;%1.&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}" aria-setsize="-1" data-aria-posinset="1" data-aria-level="1"><span style="font-size: 12pt;"><span style="color: #ff6600;"><b>Nature Energy</b></span>：由香港城市大学的 Alex Jen 教授发表的 “Redox mediator-stabilized wide-bandgap perovskites for monolithic perovskite-organic tandem solar cells”。</span></li><li data-leveltext="%1." data-font="" data-listid="9" data-list-defn-props="{&quot;335552541&quot;:0,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769242&quot;:[65533,0],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;%1.&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}" aria-setsize="-1" data-aria-posinset="1" data-aria-level="1"><span style="font-size: 12pt;"><b>Joule</b>：由西湖大学工学院的王睿教授发表的 “Redox mediator-stabilized wide-bandgap perovskites for monolithic perovskite-organic tandem solar cells”。</span></li></ol><p><br /><span style="font-size: 12pt;"> </span></p><h2 style="text-align: center;"><span style="font-size: 24pt;"><strong><span style="color: #13558e;">光焱科技Enlitech FTPS系统设计及规格​</span></strong></span></h2>						</div>
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		<p>這篇文章 <a href="https://enlitechsy.com/the-team-led-by-zhu-xiaozhang-at-the-chinese-academy-of-sciences-achieved-20-2-efficiency-in-organic-solar-cells-using-non-fullerene-acceptors-with-asymmetric-structures-and-phenyl-substituted-alkyl-s/">中国科学院朱晓张团队 实现 20.2%高效率有机太阳能电池，不对称结构和苯基取代烷基侧链的非富勒烯受体</a> 最早出現於 <a href="https://enlitechsy.com">胜焱电子科技-光焱科技 ENLITECH</a>。</p>
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