Physics of the Solid State
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Electronic structure of the "metal oxide/carbon nanotube" interface
Nesov S. N. 1,2, Sachkov V. A. 1, Bolotov V. V. 1
1Omsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Omsk, Russia
2Omsk State Technical University, Omsk, Russia
Email: nesov55@mail.ru, vikansach@gmail.com, val.bolotov@mail.ru

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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.
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