Perovskite solar cells(PSCs)have emerged as a promising photovoltaic technology with their rapid improvement in power conversion efficiency from 3.8%to 26.7%.However,the unsatisfactory stability is still a major hurdl...Perovskite solar cells(PSCs)have emerged as a promising photovoltaic technology with their rapid improvement in power conversion efficiency from 3.8%to 26.7%.However,the unsatisfactory stability is still a major hurdle to the future commercialization of PSCs.Among various causes of instability,oxygen and photo-induced instability are indispensable aspects to be considered,especially there is a growing demand of manufacturing PSCs with low-cost environmental conditions.This review aims to provide a timely and comprehensive summary of the investigations related to the oxygen-and photo-induced decay(OP-decay)in perovskites.Key factors affecting the OP decay pathways and decay rate have been discussed.Techniques for the analysis of oxygen and photo-induced decay processes are included.Strategies for improving photo-oxygen stability have been summarized,from the aspects of suppressing the generation yield of superoxide,protecting perovskites from the generated superoxide,and slowing down the oxygen penetration,respectively.展开更多
基金Project(62104261)supported by the National Natural Science Foundation of ChinaProject(2023JJ40695)supported by the Program of Natural Science Foundation of Hunan Province,China。
文摘Perovskite solar cells(PSCs)have emerged as a promising photovoltaic technology with their rapid improvement in power conversion efficiency from 3.8%to 26.7%.However,the unsatisfactory stability is still a major hurdle to the future commercialization of PSCs.Among various causes of instability,oxygen and photo-induced instability are indispensable aspects to be considered,especially there is a growing demand of manufacturing PSCs with low-cost environmental conditions.This review aims to provide a timely and comprehensive summary of the investigations related to the oxygen-and photo-induced decay(OP-decay)in perovskites.Key factors affecting the OP decay pathways and decay rate have been discussed.Techniques for the analysis of oxygen and photo-induced decay processes are included.Strategies for improving photo-oxygen stability have been summarized,from the aspects of suppressing the generation yield of superoxide,protecting perovskites from the generated superoxide,and slowing down the oxygen penetration,respectively.
