Copper(I) Selenide Thin Films: Composition, Morphology, Structure, and Optical Properties


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Abstract

The systematized results of studies of the composition, morphology, structure, optical properties, and conductivity of hydrochemically deposited copper(I) selenide thin films (Cu1.8Se) with the thickness of 390–400 nm are reported. The studies are carried out using scanning electron microscopy, energy-dispersive analysis, X-ray diffraction analysis, and X-ray photoelectron spectroscopy. The hole conductivity of the layers is established by the thermopower technique. The optical band gap determined from the results of studies of optical absorbance and diffuse reflection spectra of the films at 298 K is 2.5 and 1.84 eV for direct and indirect optical transitions, respectively.

About the authors

L. N. Maskaeva

Ural Federal University named after the First President of Russia B.N. Yeltsin; Ural Institute of State Fire Service of EMERCOM of Russia

Author for correspondence.
Email: mln@ural.ru
Russian Federation, Yekaterinburg, 620002; Yekaterinburg, 620022

E. A. Fedorova

Ural Federal University named after the First President of Russia B.N. Yeltsin

Email: mln@ural.ru
Russian Federation, Yekaterinburg, 620002

V. F. Markov

Ural Federal University named after the First President of Russia B.N. Yeltsin; Ural Institute of State Fire Service of EMERCOM of Russia

Email: mln@ural.ru
Russian Federation, Yekaterinburg, 620002; Yekaterinburg, 620022

M. V. Kuznetsov

Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences

Email: mln@ural.ru
Russian Federation, Yekaterinburg, 620990

O. A. Lipina

Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences

Email: mln@ural.ru
Russian Federation, Yekaterinburg, 620990

A. V. Pozdin

Ural Federal University named after the First President of Russia B.N. Yeltsin

Email: mln@ural.ru
Russian Federation, Yekaterinburg, 620002


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