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Proceedings Paper

2D monocrystalline nanostructures of cobalt oxide Co3O4 for sensing individual molecules
Author(s): Olga E. Glukhova; Michael M. Slepchenkov; Dmitriy A. Kolosov
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Paper Abstract

In this work, the sensory properties of a thin film of a Co3O4 monocrystal 0.5 nm in thick with a (111) plane are studied on the example of alcohol molecules of methanol, ethanol, propanol, and butanol. The regularities in the interaction of alcohol molecules with film surface are investigated. The energy profiles of interaction are calculated and the values of activation energy are determined. It is established that the value of activation energy is determined by the weight of the adsorbed molecule and its configuration relative to the surface of cobalt oxide. The regularity of the change in the electrical resistance of the Co3O4 film during the adsorption of various alcohol molecules was revealed. It is found that the monocrystalline nanostructure of cobalt oxide Co3O4 is very promising as a sensory surface, which makes it possible to register individual molecules.

Paper Details

Date Published: 21 February 2020
PDF: 5 pages
Proc. SPIE 11256, Reporters, Markers, Dyes, Nanoparticles, and Molecular Probes for Biomedical Applications XII, 112560P (21 February 2020); doi: 10.1117/12.2546528
Show Author Affiliations
Olga E. Glukhova, Saratov State Univ. (Russian Federation)
I.M. Sechenov First Moscow State Medical Univ. (Russian Federation)
Michael M. Slepchenkov, Saratov State Univ. (Russian Federation)
Dmitriy A. Kolosov, Saratov State Univ. (Russian Federation)

Published in SPIE Proceedings Vol. 11256:
Reporters, Markers, Dyes, Nanoparticles, and Molecular Probes for Biomedical Applications XII
Samuel Achilefu; Ramesh Raghavachari, Editor(s)

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