A mechanochemical route to single phase Cu2ZnSnS4 powder

  • Ritscher A
  • Just J
  • Dolotko O
 et al. 
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Abstract

With respect to absorber materials in solar cells, Cu2ZnSnS4 (CZTS) has been a focus of interest in recent years. In this work, a new route leading to single phase CZTS powders is presented. For structural characterization X-ray and neutron powder diffraction measurements were performed. Further structural and compositional analysis of the CZTS powder was carried out by means of X-ray absorption near edge spectroscopy (XANES) and wavelength-dispersive X-ray spectroscopy (WDS). The obtained CZTS powder with an actual composition of Cu2.00(4)Zn1.02(2)Sn0.99(2)S4.00(8) adopts the kesterite-type structure. A detailed cation distribution analysis using the average neutron scattering length method revealed a partial disorder of copper and zinc on the (2c) and (2d) sites.

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Authors

  • A. Ritscher

  • J. Just

  • O. Dolotko

  • S. Schorr

  • M. Lerch

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