文献类型：期刊文献

英文题名：Resolving the detrimental interface in co-evaporated MAPbI(3) 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]Shaoxing Univ, Dept Phys, Shaoxing 312000, Peoples R China;[2]Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China;[3]Shanghai Univ, Shanghai Key Lab High Temp Superconductors, Dept Phys, SHU Solar R&D Lab E, Shanghai 200444, Peoples R China;[4]Shaanxi Normal Univ, Sch Mat Sci & Engn, Inst Adv Energy Mat, Key Lab Appl Surface & Colloid Chem,Natl Minist E, Xian 710119, Shaanxi, Peoples R China;[5]Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China

年份：2019

卷号：69

起止页码：329

外文期刊名：ORGANIC ELECTRONICS

收录：SCI-EXPANDED(收录号：WOS:000466385800045)、、WOS

基金：This research was supported by the National Natural Science Foundation of China (Grant Nos. 51872186 and 51672172), the Zhejiang Provincial Natural Science Foundation (Grant No. LQ19F040002), the Scientific and Technical Plan Project of Shaoxing City (Grant No. 2017B70063), and the Natural Science Foundation of Shanghai (Grant Nos. 17LR1409600 and 15ZR1418700). The authors also thank Instrumental Analysis and Research Center of Shanghai University for XRD and SEM measurement.

语种：英文

外文关键词：Perovskite solar cell; Vacuum evaporation; Interface modification

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 MAPbI(3) 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 MAPbI(3) perovskite layer at the interface prior to the co-evaporation of MAPbI(3) 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.