Real-time detection of aging status of methylammonium lead iodide perovskite thin films by using terahertz time-domain spectroscopy

doi:10.1007/s12200-024-00128-0

2024, Vol. 17

Issue (3) : 24 https://doi.org/10.1007/s12200-024-00128-0

Real-time detection of aging status of methylammonium lead iodide perovskite thin films by using terahertz time-domain spectroscopy

Jinzhuo Xu¹, Yinghui Wu², Shuting Fan³, Xudong Liu³, Zhen Yin³, Youpeng Yang³, Renheng Wang³, Zhengfang Qian³, Yiwen Sun³(

)

¹. Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen 518060, China
². Guangdong Provincial Key Laboratory of Durability for Ocean Civil Engineering, College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, China
³. Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China

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Abstract

The inadequate stability of organic–inorganic hybrid perovskites remains a significant barrier to their widespread commercial application in optoelectronic devices. Aging phenomena profoundly affect 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 findings facilitate the real-time assessment of perovskite aging, providing a promising method to expedite the commercialization of perovskite-based optoelectronic devices.

Keywords Perovskite Terahertz spectroscopy Ageing Real-time detection

Corresponding Author(s): Yiwen Sun

About author:

^#These authors contributed equally to this work.

Issue Date: 08 August 2024

Cite this article:

Jinzhuo Xu,Yinghui Wu,Shuting Fan, et al. Real-time detection of aging status of methylammonium lead iodide perovskite thin films by using terahertz time-domain spectroscopy[J]. Front. Optoelectron., 2024, 17(3): 24.

URL:

https://academic.hep.com.cn/foe/EN/10.1007/s12200-024-00128-0
https://academic.hep.com.cn/foe/EN/Y2024/V17/I3/24

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