Hoat, P.D. and Vo, V.K. and Bae, S.-H. and Lim, H.-J. and Thao, D.T.H. and Hung, P.T. and Hung, N.M. and Hoang, N.V. and Lee, J.-H. and Heo, Y.-W. (2023) Room-temperature sensing of NH3 gas using CsPbBr3 thin films grown via dual-source evaporation. Journal of Alloys and Compounds, 960. ISSN 09258388
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An effective ammonia sensor was developed using a CsPbBr3 thin film prepared directly by dual-source thermal evaporation. The CsPbBr3-based sensor exhibited good selectivity toward ammonia gas at room temperature, showing a high responsivity (958 at 10 ppm) and low detection limit (250 ppb). The sensor also demonstrated good reversibility, repeatability and fast rise/recovery times (12/16 s). Additionally, the effect of humidity on ammonia responsivity was investigated for the application of CsPbBr3 films in practical room-temperature ammonia gas sensors. The ammonia-sensing mechanism of the CsPbBr3 film was proposed and discussed. © 2023 Elsevier B.V.
| Item Type: | Article |
|---|---|
| Divisions: | Faculties > Faculty of Physical and Chemical Engineering |
| Identification Number: | 10.1016/j.jallcom.2023.170731 |
| Additional Information: | Ammonia gas sensor; CsPbBr3; Halide perovskites; Room-temperature gas sensor; Thermal evaporation |
| URI: | http://eprints.lqdtu.edu.vn/id/eprint/10844 |
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