Published January 1, 2020 | Version v1
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Phase Composition, Microstructure, and Optical Properties of Cu(2)SnS(3)Thin Films

  • 1. Natl Acad Sci Belarus, State Sci & Prod Assoc, Sci Pract Mat Res Ctr, Minsk 220072, BELARUS
  • 2. JSC Integral Integral Holding Managing Co, Minsk 220108, BELARUS
  • 3. Gazi Univ, Photon Applicat & Res Ctr, TR-06500 Ankara, Turkey

Description

The Cu2SnS3(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 CuxS phase were formed at a temperature of 520 degrees C. Scanning electron microscopy revealed a compact and homogeneous microstructure of the polycrystalline CTS layers. Photoluminescence spectra of the CTS 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.

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