Materials and structures for the electron transport layer of efficient and stable perovskite solar cells  

作　　者：Shizhao Zheng Gaopeng Wang Tongfa Liu Lingyun Lou Shuang Xiao Shihe Yang 

机构地区：[1]Guangdong Key Laboratory of Nano-Micro Material Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School,Peking University

出　　处：《Science China Chemistry》2019年第7期800-809,共10页中国科学（化学英文版）

基　　金：supported by the Shenzhen Peacock Plan Program(KQTD2016053015544057);the Nanshan Pilot Plan(LHTD20170001);the National Natural Science Foundation of China(51773230)

摘　　要：The electron transport layer plays a vital function in extracting and transporting photogenerated electrons, modifying the interface, aligning the interfacial energy level and minimizing the charge recombination in perovskite solar cells. This review summarizes the recent research progress on electron transport materials of metal oxides, organic molecules and multilayers. The doped metal oxides as electron transport materials in regular perovskite solar cells show improved device performance relative to their non-doped counterpart due to enhanced electron mobility and energy level alignment. The non-fullerene organic electron transport materials with better electron mobility and tunable energy level alignment need to be further designed and developed despite their advantages of mechanical flexibility and wide range tunability. The multilayer electron transport materials are suggested to be an important direction of research for efficient and stable perovskite solar cells because of their favorable synergistic interaction.The electron transport layer plays a vital function in extracting and transporting photogenerated electrons, modifying the interface, aligning the interfacial energy level and minimizing the charge recombination in perovskite solar cells. This review summarizes the recent research progress on electron transport materials of metal oxides, organic molecules and multilayers. The doped metal oxides as electron transport materials in regular perovskite solar cells show improved device performance relative to their non-doped counterpart due to enhanced electron mobility and energy level alignment. The non-fullerene organic electron transport materials with better electron mobility and tunable energy level alignment need to be further designed and developed despite their advantages of mechanical flexibility and wide range tunability. The multilayer electron transport materials are suggested to be an important direction of research for efficient and stable perovskite solar cells because of their favorable synergistic interaction.

关 键 词：PEROVSKITE solar cells electron transport layer metal OXIDE ORGANIC MOLECULES MULTILAYER 

分 类 号：O6[理学—化学]