Highly Transparent Organic Solar Cells with All‐Near‐Infrared Photoactive Materials,Small Methods

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Highly Transparent Organic Solar Cells with All‐Near‐Infrared Photoactive Materials
Small Methods ( IF 10.7 ) Pub Date : 2019-07-25 , DOI: 10.1002/smtd.201900424
Yuanpeng Xie ₁ , Ruoxi Xia ₂ , Tengfei Li ₃ , Linglong Ye ₁ , Xiaowei Zhan ₃ , Hin‐Lap Yip _{2,

4} , Yanming Sun ₁

Affiliation

Transparent organic photovoltaics are identified as important components for building‐integrated photovoltaics and smart window technologies. In this work, highly transparent organic solar cells (T‐OSCs) based on all‐near‐infrared (NIR) harvesting materials (optical bandgap,

E_{g}^{opt}

< 1.4 eV) are first fabricated. Both donor and acceptor materials used in T‐OSCs exhibit great transparency in the visible region. After combining MoO₃/Ag or MoO₃/Ag/MoO₃ transparent electrode, T‐OSCs show excellent visible light transmittance (VLT) of 52–61.5% with power conversion efficiencies of 3.5–4.2%. As far as it is known, this all‐NIR active layer represents the most visible transparent donor–acceptor combination in OSCs. In addition to high VLT, T‐OSCs have great aesthetic value, good color‐rendering index (CRI > 90), and high light energy utilization properties. This work highlights great potential of NIR photoactive materials for T‐OSCs.

中文翻译：

具有近红外光敏材料的高度透明的有机太阳能电池

透明有机光伏被确定为建筑集成光伏和智能窗户技术的重要组成部分。在这项工作中，基于全红外（NIR）收集材料（光学带隙，

E_{G}^{选择}

<1.4 eV）首先被制造出来。T‐OSC中使用的供体和受体材料在可见光区域都显示出很高的透明度。在结合使用MoO ₃ / Ag或MoO ₃ / Ag / MoO ₃透明电极后，T-OSC显示出52-61.5％的出色可见光透射率（VLT），功率转换效率为3.5-4.2％。据了解，这种全NIR活性层代表了OSC中最可见的透明施主-受主组合。除了高VLT，T‐OSC还具有很高的美学价值，良好的显色指数（CRI> 90）和较高的光能利用率。这项工作凸显了近红外光敏材料在T‐OSC中的巨大潜力。

更新日期：2019-11-18

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