Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials
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Electric crystallization of thin films of sodium – tungsten bronze

B.M. Khubolov

Kabardino-Balkarian State University named after H.M. Berbekov

DOI: 10.26456/pcascnn/2020.12.213

Short communication

Abstract: The paper considers the problems of obtaining thin films of sodium-tungsten bronzes of a cubic structure by the method of electrocrystallization. The main parameters of the obtained films are presented. The reflection spectra of the films were recorded for uncolored and colored films. Investigation of the near-surface layer of sodium-tungsten bronze single crystals by protonography and nuclear reactions showed their high structural perfection. The anodic and cathodic polarizations of single crystals lead to a change in the structure of their surface layer. Depletion in sodium of the near-surface layer is present at both cathodic and anodic polarization, and the depletion depth increases with increasing polarization time of the voltage value. Thin films of sodium-tungsten bronzes have been investigated by electron diffraction, and the amorphous structure of freshly deposited films has been established for all substrate temperatures. Annealing with an electron beam leads to crystallization of the films.

Keywords: sodium-tungsten bronze, electrocrystallization, thin film, single crystal, reflection spectra, electrochromic effect, electrochromic indicator

  • Boris M. Khubolov – Ph. D., Leading Researcher of Management Research and Innovation Department, Head of the Laboratory of Electrochromic Materials, Department of Experimental and Theoretical Physics, Institute of Physics and Mathematics, Kabardino-Balkarian State University named after H.M. Berbekov

Reference:

Khubolov, B.M. Electric crystallization of thin films of sodium – tungsten bronze / B.M. Khubolov // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. – Tver: TSU, 2020. — I. 12. — P. 213-221. DOI: 10.26456/pcascnn/2020.12.213. (In Russian).

Full article (in Russian): download PDF file

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