Fabrication of Cu2ZnSn(SxSe1-x)4 thin film solar cell by single step sulfo-selenization of stacked metallic precursors

Sambhaji M. Pawar, Akbar I. Inamdar, Kishor V. Gurav, Seung Wook Shin, Jihye Gwak, Yongcheol Jo, Jae Ho Yun, Hisun Pak, Sehan Kwon, Hyungsang Kim, Jin Hyeok Kim, Hyunsik Im

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13 Scopus citations

Abstract

We have synthesized an efficient Cu2ZnSn(SxSe1-x)4 (CZTSSe) absorbers by using single-step rapid thermal sulfo-selenization process of sputtered stack metallic precursor (Zn/Sn/Cu) films. The structural and morphological studies confirm that the suitability of the rapid thermal sulfo-selenization process for the synthesis of a CZTSSe absorber without any secondary phases with large grains. The annealing atmosphere with a mixed-chalcogen source enhances the grain growth of the CZTSSe absorber as compared with pure Cu2ZnSnS4 (CZTS) and Cu2ZnSnSe4 (CZTSe) absorbers. The CZTSSe thin film solar cell shows the best conversion efficiency of ∼7%.

Original languageEnglish (US)
Pages (from-to)59-63
Number of pages5
JournalCurrent Applied Physics
Volume15
Issue number2
DOIs
StatePublished - Feb 2015

Keywords

  • CuZnSn(SSe) absorber
  • RF sputtering method
  • Rapid thermal annealing process
  • Stacked metallic precursor films
  • Sulfo-selenization

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