Bolotov V. V.1, Knyazev E. V.1, Ivlev K. E.1, Ponomareva I. V.1, Sten’kin Yu. A.1, Nesov S. N.1, Roslikova E. A.1
1Omsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Omsk, Russia
Email: 85konst85@gmail.com
To improve the selectivity of gas-sensitive SnOx films, SnOx/MnOy composite structures were obtained in which manganese oxide plays the role of a NO2 sorbing filter. The microstructure and chemical composition of the films were characterized using scanning electron microscopy and X-ray photoelectron spectroscopy. The structures were tested to detect 5 ppm NO2 at room temperature. The sensory response of SnOx films in the presence of NO2 decreases by 16 times after coating the MnOy filter layer. Keywords: filters, microsensors, manganese oxide, tin dioxide.
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