标题：High performance inverted perovskite solar cells using PEDOT:PSS/KCl hybrid hole transporting layer
作者：Nian Cheng, Zhen Liu, Zhen Yu, Weiwei Li, Zhiqiang Zhao, Zhenyu Xiao, Bao Lei, Shujie Sun, Wei Zi
来源出版物：Organic Electronics
出版年：2021
卷：98
页码：106298
文献类型：Article
语种：英语
摘要：PEDOT:PSS is one of the most widely used hole transporting layer for inverted perovskite solar cells. Yet the performances of the corresponding perovskite solar cells are not satisfactory. Here, we demonstrate that KCl modified PEDOT:PSS film can promote the crystallization of perovskite film and enlarge the perovskite crystals. At the same time, KCl can diffuse into the perovskite film and effectively passivate the defects. As a result, inverted perovskite solar cells fabricated on 10 mg mL−1PEDOT:PSS/KCl films exhibit an average power conversion efficiency of 16.24 %, which is enhanced by 17.77 % compared with the reference perovskite solar cells. Open circuit voltage of 1.009 V and power conversion efficiency of 17.09 % have also been demonstrated using the optimized 10 mg mL−1PEDOT:PSS/KCl films.
关键词：Inverted perovskite solar cells; PEDOT:PSS; Potassium chloride; Defect passivation; Charge carrier recombination
论文链接：https://doi.org/10.1016/j.orgel.2021.106298
