Perylene Diimide‐Based Electron‐Transporting Material for Perovskite Solar Cells with Undoped Poly(3‐hexylthiophene) as Hole‐Transporting Material,ChemSusChem

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Perylene Diimide‐Based Electron‐Transporting Material for Perovskite Solar Cells with Undoped Poly(3‐hexylthiophene) as Hole‐Transporting Material
ChemSusChem ( IF 7.5 ) Pub Date : 2019-02-13 , DOI: 10.1002/cssc.201802421
Ding Zou ₁ , Fafu Yang ₁ , Qixin Zhuang ₁ , Mingguang Zhu ₁ , Yunxiang Chen ₁ , Guofeng You ₁ , Zhenghuan Lin ₁ , Hongyu Zhen ₁ , Qidan Ling ₁

Affiliation

Perylene diimide‐based small molecules are widely used as intermediates of liquid crystals, owing to their high planarity and electron mobility. In this study, tetrachloroperylene diimide (TCl‐PDI) was used as a small‐molecule replacement for TiO₂ as electron‐transporting material (ETM) for planar perovskite solar cells (PVSCs). Among hole‐transporting materials (HTMs) for PVSCs, poly(3‐hexylthiophene) (P3HT) gives the devices the highest stability and reproducibility. Therefore, PVSCs with the structure of indium tin oxide (ITO)/ETM/perovskite/P3HT/MoO₃/Ag were used to evaluate the performances of new ETMs. A reference device with compact TiO₂ and P3HT gave a reasonable power conversion efficiency (PCE) of 12.78 %, whereas the PVSC with TCl‐PDI as ETM gave an enhanced PCE of 14.73 %, which is among the highest reported values for PVSCs with undoped P3HT as the HTM. Moreover, TCl‐PDI‐based devices displayed higher stability than those based on compact TiO₂, owing to the superior perovskite quality.

中文翻译：

用于非钙化聚（3-己基噻吩）作空穴传输材料的钙钛矿太阳能电池用二酰亚胺基电子传输材料

基于二酰亚胺的小分子由于其高平面性和电子迁移率而被广泛用作液晶的中间体。在这项研究中，四氯per二酰亚胺（TCl-PDI）被用作TiO ₂的小分子替代品，作为平面钙钛矿太阳能电池（PVSCs）的电子传输材料（ETM）。在PVSC的空穴传输材料（HTM）中，聚（3-己基噻吩）（P3HT）使器件具有最高的稳定性和可重复性。因此，采用具有铟锡氧化物（ITO）/ ETM /钙钛矿/ P3HT / MoO ₃ / Ag结构的PVSC来评估新型ETM的性能。具有紧凑型TiO _2的参考装置P3HT的合理功率转换效率（PCE）为12.78％，而以TCl-PDI为ETM的PVSC的PCE增强了14.73％，这是未掺杂P3HT作为HTM的PVSC的最高报告值之一。此外，由于具有出色的钙钛矿质量，基于TCl-PDI的设备显示出比基于紧凑型TiO ₂的设备更高的稳定性。

更新日期：2019-02-13

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