Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. Founded at 2009

Illumination effect on recognition ability of multisensor microsystems based on tin oxide nanowhiskers

I.V. Sinev, N.A. Klychkov, D.A. Timoshenko, V.V. Simakov

Saratov State University

DOI: 10.26456/pcascnn/2020.12.713

Original article

Abstract: Using standard methods of data classification, the possibility of recognizing gas mixtures using a multisensor microsystem with a gas-sensitive layer based on whisker nanocrystals is shown. The statistical analysis of the experimental results showed that the illumination of a gas-sensitive layer of tin dioxide with a LED in the ultraviolet range significant increases the median Euclidean-Mahalanobis distance between the classes (recognition ability) of various gas samples compared to the results of measurements in the dark. Suggested that the increase in the recognition ability of a multisensor microsystem is associated with the selective effect of illumination on surface chemical reactions of oxygen species and particles of analyzed gases.

Keywords: tin dioxide, nanowhiskers, multisensor microsystems, ultraviolet illumination, recognition of gas mixtures

  • Il'ya V. Sinev – Ph. D., Associate Professor of the Department of Materials Sciences and Technologies and Quality Management, Saratov State University
  • Nikita A. Klychkov – undergraduate student, Saratov State University
  • Dmitrii A. Timoshenko – postgraduate student, Saratov State University
  • Vyacheslav V. Simakov – Dr. Sc., Professor of the Department of Materials Sciences and Technologies and Quality Management, Saratov State University

Reference:

Sinev I.V., Klychkov N.A., Timoshenko D.A., Simakov V.V. Vliyanie osveshcheniya na raspoznavatelnuyu sposobnost multisensornykh mikrosistem na osnove nitevidnykh nanokristallov dioksida olova [Illumination effect on recognition ability of multisensor microsystems based on tin oxide nanowhiskers], Fiziko-khimicheskie aspekty izucheniya klasterov, nanostruktur i nanomaterialov [Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials], 2020, issue 12, pp. 713-721. DOI: 10.26456/pcascnn/2020.12.713. ⎘

Full article (in Russian): download PDF file

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