Phase Composition, Microstructure, and Optical Properties of Cu2SnS3 Thin Films

The Cu 2 SnS 3 (CTS) thin films were produced by deposition of Sn/Cu layers by RF sputtering followed by annealing in an Ar/S atmosphere with S and Sn sources. According to XRD analysis and Raman spectroscopy, it was shown that single-phase CTS films of a monoclinic structure with traces of the Cu x...

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Bibliographic Details
Published in:Journal of applied spectroscopy 2020-07, Vol.87 (3), p.488-494
Main Authors: Zaretskaya, E. P., Gremenok, V. F., Ivanov, V. A., Stanchik, A. V., Borodavchenko, O. M., Zhyhulin, D. V., Özçelik, S., Akçay, N.
Format: Article
Language:English
Subjects:
Analytical Chemistry
Atomic/Molecular Structure and Spectra
Conduction bands
Copper
Copper sulfides
Energy levels
Microstructure
Optical properties
Phase composition
Photoluminescence
Physics
Physics and Astronomy
Raman spectroscopy
Spectrum analysis
Thin films
Tin
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Description
Summary:The Cu 2 SnS 3 (CTS) thin films were produced by deposition of Sn/Cu layers by RF sputtering followed by annealing in an Ar/S atmosphere with S and Sn sources. According to XRD analysis and Raman spectroscopy, it was shown that single-phase CTS films of a monoclinic structure with traces of the Cu x S phase were formed at a temperature of 520°C. Scanning electron microscopy revealed a compact and homogeneous microstructure of the polycrystalline CTS layers. Photoluminescence spectra of the СTS films of monoclinic modification show one wide peak in the energy range of 0.7–1.0 eV, due to optical transitions of electrons from the conduction band to deep energy levels of acceptor-type defects.
ISSN:0021-9037
1573-8647
DOI:10.1007/s10812-020-01028-9