TY - JOUR
T1 - Healing aged metal halide perovskite toward robust optoelectronic devices
T2 - Mechanisms, strategies, and perspectives
AU - Ran, Chenxin
AU - Liu, Xin
AU - Gao, Weiyin
AU - Li, Mingjie
AU - Wu, Zhongbin
AU - Xia, Yingdong
AU - Chen, Yonghua
N1 - Funding Information:
This work was financially supported by the Natural Science Foundation of China (Grants 52202300 , 51802253 , 51972172 , and 61705102 ), the China Postdoctoral Science Foundation (Grants 2021M692630 , 2022M722591 ), Natural Science Basic Research Plan in Shaanxi Province of China ( 2022JQ-629 , 2023-JC-QN-0643 ), the Joint Research Funds of Department of Science & Technology of Shaanxi Province and Northwestern Polytechnical University ( 2020GXLH-Z-007 and 2020GXLH-Z-014 ), Natural Science Foundation of Jiangsu Province for Distinguished Young Scholars , China (Grant BK20200034 ), the Innovation Project of Optics Valley Laboratory ( OVL2021BG006 ), the Open Project Program of Wuhan National Laboratory for Optoelectronics ( 2021WNLOKF003 ), the Young 1000 Talents Global Recruitment Program of China , the Fundamental Research Funds for the Central Universities .
Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/4
Y1 - 2023/4
N2 - Owing to their low cost, high efficiency, property tunability, and flexibility, metal halide perovskites (MHPs) show great promise in next-generation optoelectronics, including perovskite-based solar cells, photodetectors, and light-emitting diodes. However, the long-term stability of these perovskite-based optoelectronic devices (PODs) is far from satisfactory, and their poor stability greatly hinders their future commercialization in real-world applications. Essentially speaking, the performance loss of PODs is due to the structural change of the core MHP layer either physically or chemically. Fortunately, these physicochemical changes are found to be reversible under controlled conditions, which offers a critical opportunity to address the long-term stability problem of PODs. In this review, we comprehensively summarize the current understanding of performance loss and the corresponding advanced healing strategies for PODs. First, four typical pathways of MHP aging that cause the performance loss of PODs are discussed, including phase transitions, phase segregation, photoactivated trap states, and structural decomposition of MHPs. Then, state-of-the-art strategies for promoting the healing of MHPs and the performance recovery of PODs are introduced. Finally, the current challenges and future prospects in this exciting research direction are discussed. This review highlights the significance of developing healable PODs, which is expected to enhance the robustness of PODs and promote their large-scale industrialization in the near future.
AB - Owing to their low cost, high efficiency, property tunability, and flexibility, metal halide perovskites (MHPs) show great promise in next-generation optoelectronics, including perovskite-based solar cells, photodetectors, and light-emitting diodes. However, the long-term stability of these perovskite-based optoelectronic devices (PODs) is far from satisfactory, and their poor stability greatly hinders their future commercialization in real-world applications. Essentially speaking, the performance loss of PODs is due to the structural change of the core MHP layer either physically or chemically. Fortunately, these physicochemical changes are found to be reversible under controlled conditions, which offers a critical opportunity to address the long-term stability problem of PODs. In this review, we comprehensively summarize the current understanding of performance loss and the corresponding advanced healing strategies for PODs. First, four typical pathways of MHP aging that cause the performance loss of PODs are discussed, including phase transitions, phase segregation, photoactivated trap states, and structural decomposition of MHPs. Then, state-of-the-art strategies for promoting the healing of MHPs and the performance recovery of PODs are introduced. Finally, the current challenges and future prospects in this exciting research direction are discussed. This review highlights the significance of developing healable PODs, which is expected to enhance the robustness of PODs and promote their large-scale industrialization in the near future.
KW - Healing optoelectronic devices
KW - Long-term stability
KW - Mechanism
KW - Metal halide perovskite
KW - Reversible reaction
UR - http://www.scopus.com/inward/record.url?scp=85146902810&partnerID=8YFLogxK
U2 - 10.1016/j.nanoen.2023.108219
DO - 10.1016/j.nanoen.2023.108219
M3 - Review article
AN - SCOPUS:85146902810
SN - 2211-2855
VL - 108
JO - Nano Energy
JF - Nano Energy
M1 - 108219
ER -