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Scalable Approach to Develop High Performance Chemiresistive Nitric Oxide Sensor

Jha, RK and Nanda, A and Avasthi, P and Arya, N and Yadav, A and Balakrishnan, V and Bhat, N (2022) Scalable Approach to Develop High Performance Chemiresistive Nitric Oxide Sensor. In: IEEE Transactions on Nanotechnology, 21 . pp. 177-184.

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Official URL: https://doi.org/10.1109/TNANO.2022.3149710


We report on a low cost and scalable approach to develop a chemiresistive nitric oxide sensor based on iron oxide nanorods sensing film. The device was found to detect nitric oxide (NO) gas at an optimal temperature of 250 °C. The device required very low bias voltage (i.e., 1 mV) to operate and was sensitive to NO gas in the concentration range 0.5 ppm-2.75 ppm. The response of the device in this range found to be 1.49 (0.5 ppm) - 15.2 (2.75 ppm) with average response and recovery time of less than 10 seconds. The device shows non-linear behavior with average hysteresis error of the sensor around 7. These experimental findings were supported with the density functional theory calculations. These features along with high stability and decent repeatability of the nanorod-based gas sensing device makes it a worthwhile alternative to current available technology.

Item Type: Journal Article
Publication: IEEE Transactions on Nanotechnology
Publisher: Institute of Electrical and Electronics Engineers Inc.
Additional Information: The copyright for this article belongs to the Institute of Electrical and Electronics Engineers Inc.
Keywords: Nanorods; Nitric oxide; Temperature measurement; Temperature sensors, Chemiresistive sensors; Iron oxide nanorod; Low cost approach; Nanoscale device; Nitric oxide sensors; Oxide gas; Performance; Performances evaluation; Scalable approach; Sensing films, Iron oxides
Department/Centre: Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited: 08 Jul 2022 09:31
Last Modified: 08 Jul 2022 09:31
URI: https://eprints.iisc.ac.in/id/eprint/74321

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