Quasi-2D SnO Thin Films for Gas Sensors: Chemoresistive Response and Temperature Effect on Adsorption of Analytes.

Materials (Basel)

Institute of Physics, Saratov State University, Astrakhanskaya Street 83, 410012 Saratov, Russia.

Published: January 2023

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We performed in silico calculations of electrical conductivity of quasi-2D SnO thin films with a (110) surface-prospect material for sensitive element of gas sensors. Electronic structure, charge transfer and chemoresistive response of quasi-2D SnO thin films during adsorption of alcohol molecules (ethanol, methanol, isopropanol and butanol) and ketones (acetone, cyclopentanone and cyclohexanone) were calculated. It was found that the electrical conductivity of quasi-2D SnO thin films decreases within 4-15% during adsorption of analytes. The influence of temperature on the concentration of analytes on the surface of quasi-2D SnO thin films was explored in dependence analyte's type.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9822351PMC
http://dx.doi.org/10.3390/ma16010438DOI Listing

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