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首页> 外文期刊>ACS applied materials & interfaces >High Performance Planar Heterojunction Perovskite Solar Cells with Fullerene Derivatives as the Electron Transport Layer
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High Performance Planar Heterojunction Perovskite Solar Cells with Fullerene Derivatives as the Electron Transport Layer

机译：具有富勒烯衍生物作为电子传输层的高性能平面异质结钙钛矿太阳能电池

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摘要

In this study, we report the utilization of solution-processed high electrical conductive [6,6]-phenyl-C61-butyric acid methyl ester (PC61BM) combined with solution-processed TiO2 as the electron transport layer (ETL) to overcome extremely low electrical conductivity of solution-processed TiO2 ETL in planar heterojunction (PHJ) perovskite hybrid solar cells (pero-HSCs). Due to the much more preferable electron extraction and transportation of PC61BM at the cathode side, a tremendously boosted short-circuit current density (JSC), fill factor (FF) and enhanced power conversion efficiency (PCE) are observed. To further address the wettability issues of perovskite materials on the top of PC61BM, water-soluble fullerene derivative is applied to modulate the surface of PC61BM. Consequently, further advanced FF with slightly enlarged JSC and open-circuit voltage (VOC) are observed. The resulted PCE is comparable with the meso-superstructured solar cells in which high PCEs can be produced. Our studies certainly provide a simple approach to boost the efficiency of PHJ pero-HSCs.
机译：在这项研究中，我们报告了利用溶液处理的高导电性[6,6]-苯基-C61-丁酸甲酯（PC61BM）与溶液处理的TiO2结合作为电子传输层（ETL）来克服极低的平面异质结（PHJ）钙钛矿混合太阳能电池（pero-HSC）中固溶处理的TiO2 ETL的电导率。由于在阴极侧PC61BM的电子提取和传输更为理想，因此观察到极大提高的短路电流密度（JSC），填充系数（FF）和增强的功率转换效率（PCE）。为了进一步解决钙钛矿材料在PC61BM顶部的润湿性问题，使用水溶性富勒烯衍生物调节PC61BM的表面。因此，观察到进一步先进的FF，其JSC和开路电压（VOC）略有增大。所得的PCE与可以生产高PCE的中观超结构太阳能电池相当。我们的研究无疑提供了一种提高PHJ pero-HSC效率的简单方法。

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