文献类型：期刊文献

英文题名：Resolving the detrimental interface in co-evaporated MAPbI3 perovskite solar cells by hybrid growth method

作者：Xu, Haitao[1,2]; Xu, Fuzong[2]; Wang, Wenzhen[2]; Zhu, Yanyan[2]; Fang, Zebo[1]; Yao, Bo[1]; Hong, Feng[3]; Cui, Jian[4]; Xu, Fei[3]; Xu, Run[2]; Chen, Chun-Chao[5]; Wang, Linjun[2]

机构：[1] Department of Physics, Shaoxing University, Shaoxing, 312000, China; [2] School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, China; [3] SHU-Solar E R&D Lab, Department of Physics, Shanghai Key Laboratory of High Temperature Superconductors, Shanghai University, Shanghai, 200444, China; [4] Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Institute for Advanced Energy Materials, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, China; [5] State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China

年份：2019

卷号：69

起止页码：329

外文期刊名：Organic Electronics

收录：EI(收录号：20191406725617)、Scopus(收录号：2-s2.0-85063679503)

语种：英文

外文关键词：Deposition - Efficiency - Layered semiconductors - Lead compounds - Perovskite - Vacuum evaporation

外文摘要：Among various processing methods for growing perovskite thin layers, dual-source vacuum deposition was once regarded as the most economical and high throughput method. However, co-evaporation of MAI and PbI2 often leads to an inevitable PbI2 interfacial layer formed by the initial growth of evaporation resulting in a compromised efficiency of vacuum deposited MAPbI3 solar cell. Here, two modified growth methods based on vacuum co-evaporation, namely solution-vacuum hybrid method (SVHM) and soaking-assistant fully-vacuum method (SAFVM), are developed to grow a completely converted MAPbI3 perovskite layer at the interface prior to the co-evaporation of MAPbI3 perovskite layer. Upon these two methods, the unwanted PbI2 layer can be removed from the interface resulting in much improved power conversion efficiency up to 14.35%. Our result shows that, while unwanted interfacial PbI2 layer is the main cause of low performing co-evaporated perovskite solar cell devices, by removing the PbI2 interfacial layer we can unlock the full potential of vacuum-based perovskite solar cells to industrial mass production. ? 2019 Elsevier B.V.