Properties and alcohol sensing applications of quasi-2D (PEA)(2)(MA)(3)Sb(2)Br(9) thin films

We fabricated an alcohol detector based on (PEA)(2)(CH(3)NH(3))(3)Sb(2)Br(9) ((PEA)(2)MA(3)Sb(2)Br(9)) lead-free perovskite-like films. The XRD pattern revealed that the (PEA)(2)MA(3)Sb(2)Br(9) lead-free perovskite-like films exhibited a quasi-2D structure. The optimal current response ratios are 74...

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Detalles Bibliográficos
Autores principales: Hun, Chien-Min, Chen, Lung-Chien
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2023
Materias:
Research
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9941401/
https://www.ncbi.nlm.nih.gov/pubmed/36808580
http://dx.doi.org/10.1186/s11671-023-03806-8
Descripción
Sumario:We fabricated an alcohol detector based on (PEA)(2)(CH(3)NH(3))(3)Sb(2)Br(9) ((PEA)(2)MA(3)Sb(2)Br(9)) lead-free perovskite-like films. The XRD pattern revealed that the (PEA)(2)MA(3)Sb(2)Br(9) 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)(2)MA(3)Sb(2)Br(9) 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.

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