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Flexible Lead Bromide Perovskite Solar Cells
ACS Applied Energy Materials ( IF 5.4 ) Pub Date : 2020-09-04 , DOI: 10.1021/acsaem.0c01473
Yawen Liu 1 , Byeong Jo Kim 1 , Hua Wu 1 , Lin Yuan 1 , Huimin Zhu 1 , Aijie Liu 1 , Erik M. J. Johansson 1
Affiliation  

Lead bromide perovskite solar cells (PSCs) have attracted increasing interest partly because of the high open-circuit voltage that has been obtained. Here, we present a simple way to prepare PSCs based on formamidinium lead tribromide, FAPbBr3, by adding methylammonium chloride and methylammonium bromide into the precursor solution. With this method, high-quality and pin-hole free perovskite films with large crystal sizes were prepared. These additives result in a power conversion efficiency (PCE) of 7.9%, almost free of hysteresis, for a device on a rigid glass substrate. The first flexible lead bromide PSC is also prepared in this work and the flexible PSC exhibited a high PCE of 5.0%.

中文翻译:

柔性溴化铅钙钛矿太阳能电池

溴化钙钛矿铅太阳能电池(PSC)引起了越来越多的关注,部分原因是获得的高开路电压。在这里,我们介绍了一种简单的方法,即通过将甲基氯化铵和甲基溴化铵添加到前体溶液中来制备基于三溴化甲酰胺铅FAPbBr 3的PSC 。用这种方法,制备了具有大晶体尺寸的高质量无针孔钙钛矿膜。这些添加剂可使刚性玻璃基板上的器件的功率转换效率(PCE)达到7.9%,几乎没有滞后。在这项工作中还制备了第一个柔性溴化铅PSC,并且柔性PSC的PCE高达5.0%。
更新日期:2020-10-26
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