Defect Passivation on Lead-Free CsSnI3 Perovskite Nanowires Enables High-Performance Photodetectors with Ultra-High Stability

Nano-Micro Letters

Article

Jiang Zhao¹  Jiayun Wei¹  Hai Zhou²  Zheng Gao³  Yongjie Liu⁴  Zhe Li⁴  Chen Wang⁴  Guojia Fang⁴  Kailian Dong⁴  Jiashuai Li⁴ 

[1] Faculty of Physics and Electronic Science, Hubei University, 430062, Wuhan, People’s Republic of China;International School of Microelectronics, Dongguan University of Technology, 523808, Dongguan, Guangdong, People’s Republic of China;International School of Microelectronics, Dongguan University of Technology, 523808, Dongguan, Guangdong, People’s Republic of China;Key Lab of Artificial Micro- and Nano-Structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, 430072, Wuhan, People’s Republic of China;Faculty of Physics and Electronic Science, Hubei University, 430062, Wuhan, People’s Republic of China;Key Lab of Artificial Micro- and Nano-Structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, 430072, Wuhan, People’s Republic of China;

关键词: Pb-free;    Perovskite;    CsSnI;    Photodetector;    Nanowire;   

DOI  :  10.1007/s40820-022-00964-9

 received in 2022-09-11, accepted in 2022-10-18,  发布年份 2022

来源: Springer

【 摘 要 】

tsThrough materials analysis and theoretical calculations, the defects of CsSnI3 nanowires (NWs) were effectively passivated via incorporating 1-butyl-2,3-dimethylimidazolium chloride into perovskites.The high-performance CsSnI3 NW photodetectors (PDs) were achieved with a responsivity of up to 0.237 A W−1, a high detectivity of 1.18 × 1012 Jones and a linear dynamic range of 180 dB. These values are comparable to the reported high-performance Pb-based perovskite PDs and higher than those of the Pb-free perovskite PDs.Our unpackaged devices exhibit ultra-high stability with no degradation after 60 days of storage in air (25 °C, 50% humidity).

【 授权许可】

CC BY   
© The Author(s) 2022

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