Minimizing buried interfacial defects for efficient inverted perovskite solar cells
成果类型：
Article
署名作者：
Zhang, Shuo; Ye, Fangyuan; Wang, Xiaoyu; Chen, Rui; Zhang, Huidong; Zhan, Liqing; Jiang, Xianyuan; Li, Yawen; Ji, Xiaoyu; Liu, Shuaijun; Yu, Miaojie; Yu, Furong; Zhang, Yilin; Wu, Ruihan; Liu, Zonghao; Ning, Zhijun; Neher, Dieter; Han, Liyuan; Lin, Yuze; Tian, He; Chen, Wei; Stolterfoht, Martin; Zhang, Lijun; Zhu, Wei-Hong; Wu, Yongzhen
署名单位：
East China University of Science & Technology; East China University of Science & Technology; University of Potsdam; Jilin University; Huazhong University of Science & Technology; ShanghaiTech University; Chinese Academy of Sciences; Institute of Chemistry, CAS; Shanghai Jiao Tong University
刊物名称：
SCIENCE
ISSN/ISSBN：
0036-12323
DOI：
10.1126/science.adg3755
发表日期：
2023-04-28
页码：
404-409
关键词：
摘要：
Controlling the perovskite morphology and defects at the buried perovskite-substrate interface is challenging for inverted perovskite solar cells. In this work, we report an amphiphilic molecular hole transporter, (2-(4-(bis(4-methoxyphenyl)amino)phenyl)-1-cyanovinyl)phosphonic acid, that features a multifunctional cyanovinyl phosphonic acid group and forms a superwetting underlayer for perovskite deposition, which enables high-quality perovskite films with minimized defects at the buried interface. The resulting perovskite film has a photoluminescence quantum yield of 17% and a Shockley-Read-Hall lifetime of nearly 7 microseconds and achieved a certified power conversion efficiency (PCE) of 25.4% with an open-circuit voltage of 1.21 volts and a fill factor of 84.7%. In addition, 1-square centimeter cells and 10-square centimeter minimodules show PCEs of 23.4 and 22.0%, respectively. Encapsulated modules exhibited high stability under both operational and damp heat test conditions.