Controlled synthesis of a textured CuSe(006) film by vacuum thermal treatment of a Se/Cu film structure
Kogai V. Ya. 1, Mikheev G. M. 1
1Udmurt Federal Research Center, Ural Branch Russian Academy of Sciences, Izhevsk, Russia
Email: vkogai@udman.ru, mikheev@udman.ru

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A nanocomposite film consisting of crystalline CuSe and amorphous selenium (a-Se) was obtained by vacuum-thermal deposition. It has been shown for the first time that thermal heating of a CuSe/a-Se nanocomposite film in vacuum can transform it into a textured CuSe(006) film. It has been established that, at the temperature of 438 K, CuSe crystallites grow intensively in the (006) crystallographic plane. Using the X-ray diffraction analysis method and the technique for measuring the electrical resistance of the CuSe/a-Se composite film, the phase transformation temperatures at which monoclinic Se8, trigonal t-Se, orthorhombic CuSe2, and hexagonal CuSe are formed were determined. Keywords: copper selenide, nanocomposite film, thermal heating, phase transformations, textured film. DOI: 10.61011/TPL.2023.06.56373.19451
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