Highly sensitive and ultra-fast responsive ammonia gas sensor based on 2D ZnO nanoflakes

Kanaparthi, Srinivasulu and Singh, Shiv Govind (2020) Highly sensitive and ultra-fast responsive ammonia gas sensor based on 2D ZnO nanoflakes. Materials Science for Energy Technologies, 3. pp. 91-96. ISSN 2589-2991

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Abstract

Detecting ammonia in ambient air with high sensitivity and ultra-fast responsivity is crucial given its implications on human health. The response of such sensors should also be reversible to use them for continuous monitoring. Herein, we report a reversible ammonia (NH3) sensor based on 2D ZnO nanoflakes at 250 °C. The sensor exhibited a maximum response of 80% and sub-15 s response and recovery times upon exposure of 0.6–3 ppm NH3. Further, we formulated and corrected the baseline drift with a simple and straightforward baseline manipulation method. The excellent response of the sensor indicates the feasibility of using it in diverse applications where high sensitivity and rapid response are crucial. © 2020

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IITH Creators:
IITH CreatorsORCiD
Singh, Shiv Govindhttp://orcid.org/0000-0001-7319-879X
Item Type: Article
Additional Information: The author PY thanks Science and Engineering Research Board (SERB) New Delhi Ref. No: EEQ/2017/000161 for financial support. The authors PY & HBS also grateful to the Director, CSIR-NEIST, Jorhat, Assam, India for his keen interest in this work.
Uncontrolled Keywords: 2D ZnO; Ammonia sensor; Chemiresistive gas sensor; Drift correction; Environmental monitoring
Subjects: Electrical Engineering
Divisions: Department of Electrical Engineering
Depositing User: . LibTrainee 2021
Date Deposited: 23 Nov 2022 10:38
Last Modified: 23 Nov 2022 10:38
URI: http://raiith.iith.ac.in/id/eprint/11188
Publisher URL: https://doi.org/10.1016/j.mset.2019.10.010
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