Surface modulation of halide perovskite films for efficient and stable solar cells

作     者：Qinxuan Dai Chao Luo Xianjin Wang Feng Gao Xiaole Jiang Qing Zhao 戴沁煊;骆超;王显进;高峰;姜晓乐;赵清

作者机构：Key Laboratory of General Chemistry of the National Ethnic Affairs CommissionSchool of Chemistry and EnvironmentSouthwest Minzu UniversityChengdu 610041China State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronicsSchool of PhysicsPeking UniversityBeiing 100871China Peking University Yangtze Delta Institute of OptoelectronicsNanong 226010China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2022年第31卷第3期

页      面：24-35页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the National Key Research and Development Program of China (Grant Nos. 2019YFA0707003 and 2019YFE0114100) the National Natural Science Foundation of China (Grant No. 51872007) Beijing Municipal Natural Science Foundation, China (Grant No. 7202094) 

主　　题：perovskite solar cells interfacial engineering surface modulation organic salt surface layer 

摘      要：As the main distribution place of deep-level defects and the entrance of water, the interface is critical to determining both the power conversion efficiency(PCE) and the stability of perovskite solar cells(PSCs). Suitable interface design can dramatically passivate interface defects and optimize energy level alignment for suppressing the nonradiative recombination and effectively extracting the photogenerated carriers towards higher PCE. Meanwhile, a proper interface design can also block the interface diffusion of ions for high operational stability. Therefore, interface modification is of great significance to make the PSCs more efficient and stable. Upon optimized material choices, the three-dimensional halide perovskite graded junction layer, low-dimensional halide perovskite interface layer and organic salt passivation layer have been constructed on perovskite films for superior PSCs, yet a systematic review of them is missing. Thus, a guide and summary of recent advances in modulating the perovskite films interface is necessary for the further development of more efficient interface modification.