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.
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(Key Laboratory of General Chemistry of the National Ethnic Affairs Commission,School of Chemistry and Environment,Southwest Minzu University,Chengdu 610041,China;State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics,School of Physics,Peking University,Beiing 100871,China;Peking University Yangtze Delta Institute of Optoelectronics,Nanong 226010,China)
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)。
