High‐Performance Near‐Infrared Harvesting Transparent Luminescent Solar Concentrators
High‐Performance Near‐Infrared Harvesting Transparent Luminescent Solar Concentrators
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DOI：
10.1002/adom.201901536
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发表时间：
2020-02
影响因子：
9
通讯作者：
Chenchen Yang;M. Moemeni;Matthew Bates;Wei Sheng;B. Borhan;R. Lunt
中科院分区：
文献类型：
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作者：
Chenchen Yang;M. Moemeni;Matthew Bates;Wei Sheng;B. Borhan;R. Lunt
透明发光太阳能聚光器（TLSCs）选择性地收集紫外线和近红外光子。由于在太阳能收集区域没有电极、母线和收集网格，设备结构使这些设备能够实现最高水平的透明度和美观性。近年来，COi8DFIC作为一种非富勒烯受体在有机光伏中得到了发展，具有前所未有的性能。在这项工作中，非富勒烯受体被引入到tlsc作为发光基团。系统地研究了COi8DFIC浓度对功率转换效率（PCE）、美观性和可扩展性的影响。经过器件优化，COi8DFIC TLSCs的PCE超过1.2%，平均可见光透过率超过74%，显色指数超过80。这项工作报道了在最高可见透明度下的最高TLSC器件效率，并强调了这些新兴的低带隙有机分子的光致发光特性，为提高TLSC性能提供了令人鼓舞的途径。
Transparent luminescent solar concentrators (TLSCs) selectively harvest ultraviolet and near‐infrared photons. Due to the absence of electrodes, busbars, and collection grids over the solar harvesting area, the device structure enables these devices to achieve the highest levels of transparency and aesthetics. Recently, COi8DFIC has been developed as a nonfullerene acceptor in organic photovoltaics with unprecedented performance. In this work, nonfullerene acceptors are introduced into TLSCs as the luminophores. The impact of COi8DFIC concentration on power conversion efficiency (PCE), aesthetic quality, and scalability is systematically studied. After device optimization, the COi8DFIC TLSCs are shown to achieve a PCE over 1.2% while the average visible transmittance exceeds 74% and color rendering index exceeds 80. This work reports the highest TLSC device efficiency at the highest visibly transparency and highlights that the photoluminescent properties of these emerging low bandgap organic molecules providing an encouraging path to higher TLSC performance.