Stability of Sn-Pb mixed organic–inorganic halide perovskite solar cells:Progress,challenges,and perspectives  

作　　者：Shaoshen Lv Weiyin Gao Yanghua Liu He Dong Nan Sun Tingting Niu Yingdong Xia Zhongbin Wu Lin Song Chenxin Ran Li Fu Yonghua Chen 

机构地区：[1]Frontiers Science Center for Flexible Electronics,Xi’an Institute of Flexible Electronics(IFE)and Xi’an Institute of Biomedical Materials&Engineering,Xi’an 710072,Shaanxi,China [2]Key Laboratory of Flexible Electronics(KLOFE)&Institution of Advanced Materials(IAM),Nanjing Tech University(NanjingTech),Nanjing 211816,Jiangsu,China [3]School of Materials Science and Engineering,Northwestern Polytechnical University,Xi’an 710072,Shaanxi,China

出　　处：《Journal of Energy Chemistry》2022年第2期371-404,共34页能源化学（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Grants 51972172,61705102,91833304 and 51802253);the Natural Science Basic Research Plan in Shaanxi Province of China(2019JM-326);the Joint Research Funds of Department of Science&Technology of Shaanxi Province and Northwestern Polytechnical University(No.2020GXLH-Z007);the Natural Science Foundation of Jiangsu Province for Distinguished Young Scholars,China(Grant BK20200034);the Young 1000 Talents Global Recruitment Program of China;Jiangsu Specially Appointed Professor program;“Six talent peaks”Project in Jiangsu Province,China;the Fundamental Research Funds for the Central Universities。

摘　　要：The exploration of low bandgap perovskite material to approach Shockley-Queisser limit of photovoltaic device is of great significance,but it is still challenging.During the past few years,tin–lead(Sn-Pb)mixed perovskites with low bandgaps have been rapidly developed,and their single junction solar cells have reached power conversion efficiency(PCE)over 21%,which also makes them ideal candidate as low bandgap sub-cell for tandem device.Nevertheless,due to the incorporation of unstable Sn^(2+),the stability issue becomes the vital problem for the further development of Sn-Pb mixed perovskite solar cells(PSCs).In this review,we are dedicated to give a full view in current understanding on the stability issue of SnPb mixed perovskites and their PSCs.We begin with the demonstration on the origin of instability of Sn-Pb mixed perovskites,including oxidation of Sn^(2+),defects,and interfacial layer induced instability.Sequentially,the up-to-date developments on the stability improvement of Sn-Pb mixed perovskites and their PSCs is systematically reviewed,including composition engineering,additive engineering,and interfacial engineering.At last,the current challenges and future perspectives on the stability study of Sn-Pb mixed PSCs are discussed,which we hope could promote the further application of Sn-Pb mixed perovskites towards commercialization.

关 键 词：Sn-Pb mixed perovskites STABILITY Interfacial defects Energy level mismatch Solar cells 

分 类 号：TM914.4[电气工程—电力电子与电力传动] TB34[一般工业技术—材料科学与工程]