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

作者机构：Frontiers Science Center for Flexible ElectronicsXi’an Institute of Flexible Electronics(IFE)and Xi’an Institute of Biomedical Materials&EngineeringXi’an 710072ShaanxiChina Key Laboratory of Flexible Electronics(KLOFE)&Institution of Advanced Materials(IAM)Nanjing Tech University(NanjingTech)Nanjing 211816JiangsuChina School of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an 710072ShaanxiChina 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2022年第31卷第2期

页      面：371-404页

核心收录：

学科分类：0820[工学-石油与天然气工程] 0808[工学-电气工程] 08[工学] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0827[工学-核科学与技术] 0703[理学-化学] 

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。 

主　　题：Sn-Pb mixed perovskites Stability Interfacial defects Energy level mismatch Solar cells 

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.