Room-temperature sensing of NH3 gas using CsPbBr3 thin films grown via dual-source evaporation

Hoat, Phung Dinh; Vo, Van Khoe; Bae, Sung-Hoon; Lim, Hyo-Jun; Thao, Dang Thi Huong; Hung, Pham Tien; Hung, Nguyen Manh; Van Hoang, Nguyen; Lee, Joon-Hyung; Heo, Young -Woo

doi:10.1016/j.jallcom.2023.170731

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Room-temperature sensing of NH3 gas using CsPbBr3 thin films grown via dual-source evaporation

Hoat, Phung Dinh;
Vo, Van Khoe;
Bae, Sung-Hoon;
Lim, Hyo-Jun;
Thao, Dang Thi Huong;
... Lee, Joon-Hyung;
... Heo, Young -Woo;
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초록

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.& COPY; 2023 Elsevier B.V. All rights reserved.

키워드

CsPbBr3; Halide perovskites; Thermal evaporation; Ammonia gas sensor; Room-temperature gas sensor; AMMONIA; TRANSFORMATION; NANOCOMPOSITE; CH3NH3PBI3; STABILITY; SENSORS; OXIDE

제목: Room-temperature sensing of NH3 gas using CsPbBr3 thin films grown via dual-source evaporation

저자: Hoat, Phung Dinh; Vo, Van Khoe; Bae, Sung-Hoon; Lim, Hyo-Jun; Thao, Dang Thi Huong; Hung, Pham Tien; Hung, Nguyen Manh; Van Hoang, Nguyen; Lee, Joon-Hyung; Heo, Young -Woo

DOI: 10.1016/j.jallcom.2023.170731

발행일: 2023-10-15

유형: Article

저널명: Journal of Alloys and Compounds

권: 960

언어: ENG

출판사: ELSEVIER SCIENCE SA

발행국가: 스위스

ISSN: E 1873-4669
P 0925-8388