Nanoscale Research Letters | |
Properties and alcohol sensing applications of quasi-2D (PEA)2(MA)3Sb2Br9 thin films | |
Research | |
Lung-Chien Chen1  Chien-Min Hun1  | |
[1] Department of Electro-Optical Engineering, National Taipei University of Technology, 10608, Taipei, Taiwan; | |
关键词: Lead-free perovskite; (PEA)MASbBr; Quasi-2D material; Alcohol detectors; | |
DOI : 10.1186/s11671-023-03806-8 | |
received in 2022-11-02, accepted in 2023-02-16, 发布年份 2023 | |
来源: Springer | |
【 摘 要 】
We fabricated an alcohol detector based on (PEA)2(CH3NH3)3Sb2Br9 ((PEA)2MA3Sb2Br9) lead-free perovskite-like films. The XRD pattern revealed that the (PEA)2MA3Sb2Br9 lead-free perovskite-like films exhibited a quasi-2D structure. The optimal current response ratios are 74 and 84 for 5 and 15% alcohol solutions, respectively. When the amount of PEABr decreases in the films, the conductivity of the sample in ambient alcohol with a high alcohol concentration solution increases. The alcohol was dissolved into water and carbon dioxide due to the catalyst effect of the quasi-2D (PEA)2MA3Sb2Br9 thin film. The rise and fall times for the alcohol detector were 1.85 and 0.7 s, respectively, indicating that the detector was suitable.
【 授权许可】
CC BY
© The Author(s) 2023
【 预 览 】
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