The inadequate stability of organic–inorganic hybrid perovskites remains a signifcant barrier to their widespread commercial application in optoelectronic devices.Aging phenomena profoundly afect the optoelectronic p...The inadequate stability of organic–inorganic hybrid perovskites remains a signifcant barrier to their widespread commercial application in optoelectronic devices.Aging phenomena profoundly afect the optoelectronic performance of perovskite-based devices.In addition to enhancing perovskite stability,the real-time detection of aging status,aimed at monitoring the aging progression,holds paramount importance for both fundamental research and the commercialization of organic–inorganic hybrid perovskites.In this study,the aging status of perovskite was real-time investigated by using terahertz time-domain spectroscopy.Our analysis consistently revealed a gradual decline in the intensity of the absorption peak at 0.968 THz with increasing perovskite aging.Furthermore,a systematic discussion was conducted on the variations in intensity and position of the terahertz absorption peaks as the perovskite aged.These fndings facilitate the real-time assessment of perovskite aging,providing a promising method to expedite the commercialization of perovskite-based optoelectronic devices.展开更多
基金supported by the National Natural Science Foundation of China(Grant Nos.U2330114,61975135,and 62105216)Medical-Engineering Interdisciplinary Research Foundation of Shenzhen University and Special projects in key areas of Guangdong Province(No.2022ZDZX2053)+1 种基金Shenzhen University 2035 Plan Project,Shenzhen Key Laboratory of Photonics and Biophotonics(No.ZDSYS20210623092006020)the Guangdong Basic and Applied Basic Research Foundation(No.2020A1515110477).
文摘The inadequate stability of organic–inorganic hybrid perovskites remains a signifcant barrier to their widespread commercial application in optoelectronic devices.Aging phenomena profoundly afect the optoelectronic performance of perovskite-based devices.In addition to enhancing perovskite stability,the real-time detection of aging status,aimed at monitoring the aging progression,holds paramount importance for both fundamental research and the commercialization of organic–inorganic hybrid perovskites.In this study,the aging status of perovskite was real-time investigated by using terahertz time-domain spectroscopy.Our analysis consistently revealed a gradual decline in the intensity of the absorption peak at 0.968 THz with increasing perovskite aging.Furthermore,a systematic discussion was conducted on the variations in intensity and position of the terahertz absorption peaks as the perovskite aged.These fndings facilitate the real-time assessment of perovskite aging,providing a promising method to expedite the commercialization of perovskite-based optoelectronic devices.
