Photovoltaics of low-bandgap inorganic perovskites  

作　　者：Mingyu Hu Changyu Yang Yalan Zhang Shihe Yang Yuanyuan Zhou 

机构地区：[1]Department of Physics,Hong Kong Baptist University,Kowloon,Hong Kong SAR 999077,China [2]Department of Chemical and Biological Engineering,The Hong Kong University of Science and Technology,Clear Water Bay,Hong Kong SAR 999077,China [3]School of Advanced Materials,Shenzhen Graduate School,Peking University,Shenzhen 518055,China

出　　处：《Green Carbon》2024年第3期263-273,共11页绿碳（英文）

基　　金：the funding supports from the National Natural Science Foundation of China(No.22309155);the China Postdoctoral Science Foundation(No.2021M690193);the Hong Kong Baptist University start-up grant.S.Y.acknowledge the funding supports from the National Natural Science Foundation of China(No.U2001217);the funding supports from the NSFC Excellent Young Scientists Fund(No.52222318);the Early Career Scheme(No.22300221);General Research Fund(No.12302822)from the Hong Kong Research Grant Council(RGC);the NSFC-RGC Collaborative Research Scheme(No.CRS_HKUST203/23)。

摘　　要：Low-bandgap inorganic perovskites are a group of materials that can simultaneously harness the stability merit of an all-inorganic composition and high photovoltaic efficiency potential of low-bandgap light absorbers as compared with other perovskite materials.Therefore,low-bandgap inorganic perovskites are promising materials options for the development of both single-junction and tandem solar cells.In this review,we summarize the recent studies addressing the major issues related to these perovskites,including the low phase stability and uncontrolled Sn-related defects.We also present a perspective discussion on future research directions related to these perovskites.We propose to gain insights into those unique thermodynamic and kinetic behaviors of these perovskites to understand and overcome their low phase stability.In particular,we envision that fundamental investigations leveraging 119Sn NMR may open a new pathway for understanding and alleviating Sn-related defects.Continued efforts in the discussed areas are expected to unleash the full technological potential of low-bandgap inorganic perovskites for high-performance solar cells and modules.

关 键 词：Perovskite solar cells Low-bandgap perovskites Inorganic perovskites 

分 类 号：O61[理学—无机化学]