International Conference PhysicA.SPb/2023

Electronic structure of the “metal oxide/carbon nanotube” interface

S. N. Nesov^ab, V. A. Sachkov^a, V. V. Bolotov<sup>a

a</sup> Omsk Scientific Center, Siberian Branch of the Russian Academy of Sciences, Omsk, Russia
^b Omsk State Technical University, Omsk, Russia

Abstract: The results of experimental and theoretical analysis of the structure of composites based on multi-walled carbon nanotubes (MWCNTs) and metal oxides are presented. Layers of tin and titanium oxides were formed by magnetron sputtering on MWCNT arrays with various degrees of defectiveness. The formation of metal oxide layers more uniform in morphology and structure on the surface of MWCNTs treated with an argon ion beam is shown. Modeling based on quantum mechanical calculations showed that the interaction of metal oxides with a defective carbon surface occurs with the formation of chemical bonds and a change in the electronic properties of the interface.

Keywords: carbon nanotubes, composites, tin oxide, titanium oxide, interfaces, quantum mechanical calculations.

Received: 12.05.2023
Revised: 10.07.2023
Accepted: 30.10.2023

DOI: 10.61011/FTT.2023.12.56737.5102k

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