Fabrication of 5.2% efficient Cu2ZnSn(S,Se)4 solar cells using DC-sputtered metal precursors followed by sulfo-selenization

Han Sung Yang, Ganesh Agawane, Seung Wook Shin, Sharadrao Vanalakar, Woo Lim Jung, Jin Hyeok Kim

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

In this study, we report Cu2ZnSn(S,Se)4 (CZTSSe) thin films synthesized by using a rapid thermal annealing process of direct current sputtered precursors under a sulfur and selenium atmosphere. X-ray diffraction and Raman spectroscopy investigations showed formation of CZTSSe absorber layer without any secondary phase. X-ray fluorescence spectroscopy showed a stoichiometric absorber layer has been formed which is suitable for use in solar cells. The best thin film solar cell of CZTSSe showed a photovoltaic performance of 5.2% efficiency (Voc: 585.0 mV, Jsc: 17.0 mA/cm2 and FF: 52.0%). This is the highest efficiency reported for CZTSSe prepared from sputtered Cu/Zn/Sn precursors followed by sulfo-selenization using powder sources.

Original languageEnglish (US)
Pages (from-to)708-712
Number of pages5
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume12
Issue number6
DOIs
StatePublished - Jun 1 2015

Keywords

  • CZTS thin films
  • Chalcogens
  • Solar cells
  • Sputtering
  • Sulfo-selenization

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