A. A. Ryabko, S. S. Nalimova, D. S. Mazing, O. A. Korepanov, A. M. Guketlov, O. A. Aleksandrova, A. I. Maximov, V. A. Moshnikov, Z. V. Shomakhov, A. N. Aleshin, “Sensitization of ZnO nanorods by AgInS<nobr>$_2$</nobr> colloidal quantum dots for adsorption gas sensors with light activation”, Zhurnal Tekhnicheskoi Fiziki, 2022, Volume 92, Issue 6,Pages <nobr>845

This article is cited in 1 paper

Physics of nanostructures

Sensitization of ZnO nanorods by AgInS$_2$ colloidal quantum dots for adsorption gas sensors with light activation

A. A. Ryabko^ab, S. S. Nalimova^a, D. S. Mazing^a, O. A. Korepanov^a, A. M. Guketlov^c, O. A. Aleksandrova^a, A. I. Maximov^a, V. A. Moshnikov^a, Z. V. Shomakhov^c, A. N. Aleshin^b

^a Saint Petersburg Electrotechnical University "LETI", St. Petersburg, Russia
^b Ioffe Institute, St. Petersburg, Russia
^c Kabardino-Balkar State University, Nalchik, Russia

Abstract: A low-temperature technique for the formation of coatings based on ZnO nanorods decorated with colloidal AgInS$_2$ quantum dots is presented. It is shown that ZnO nanocrystals and colloidal AgInS$_2$ quantum dots with a shell of mercaptopropionic acid molecules form a heterojunction. Sensitization of ZnO nanorods with AgInS$_2$ colloidal quantum dots to visible irradiation provides a gas analytical response of the structure to isopropyl alcohol vapor at room temperature under blue LED illumination with a peak wavelength of 460 nm.

Keywords: adsorption gas sensors, photoactivation of gas sensitivity, zinc oxide nanorods, AgInS$_2$ colloidal quantum dots, sensitization.

Received: 21.01.2022
Revised: 13.03.2022
Accepted: 14.03.2022

DOI: 10.21883/JTF.2022.06.52514.15-22