This article is cited in 3 papers

Experimental instruments and technique

Gas sensitivity of nanostructured coatings based on zinc oxide nanorods under combined activation

A. A. Ryabko^a, A. A. Bobkov^a, S. S. Nalimova^a, A. I. Maximov^a, V. S. Levitskii^b, V. A. Moshnikov^a, E. I. Terukov<sup>ab

a</sup> Saint Petersburg Electrotechnical University "LETI", 197376 St. Petersburg, Russia
^b Ioffe Institute, 194021 St. Petersburg, Russia

Abstract: This paper presents a study of the gas sensitivity of a nanostructured zinc oxide coating to isopropyl alcohol vapor during heating, ultraviolet irradiation, as well as simultaneous heating and irradiation. Simultaneous heating to 150$^\circ$C and ultraviolet irradiation ensures an increase in the sensor layer response. A 10-fold decrease in the power consumption of an ultraviolet light-emitting diode results in a 1.2-fold decrease in the response of the sensor coating. Reducing the operating temperature of a gas sensor with low power consumption and achieving the required sensitivity can provide adsorption sensors integration into portable devices for monitoring ambient air quality.

Keywords: zinc oxide, nanorods, gas sensor, UV irradiation, combined activation.

Received: 14.12.2021
Revised: 25.01.2022
Accepted: 28.01.2022

DOI: 10.21883/JTF.2022.05.52382.314-21

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