The effect of the Zn/Sn ratio on the formation of single phase kesterite Cu2ZnSnS4 solar cell material

Jian Sun, Yue Hu, Ke Liao, Chunhua Tang, Yun Lang, Jianmei Xu, Ling Zhao, Wei Zhou, Qing Wang, Kaihua He

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The effect of the Zn/Sn ratio in the solution on the properties of Cu2ZnSnS4 films prepared by sol-gel method has been investigated. As the Zn/Sn ratio in the solution increases to a certain value, a pure single phase kesterite CZTS is obtained and confirmed by XRD, XPS and Raman. Through controlling the Zn/Sn ratio in the solution, secondary phases such as SnO2 can be avoided and an optimal condition for single phase kesterite CZTS can be achieved. Surface SEM images of the CZTS films are investigated and the optical band gap of the optimized CZTS film is found to be 1.23 eV.

Original languageEnglish (US)
Pages (from-to)8103-8108
Number of pages6
JournalCeramics International
Volume43
Issue number11
DOIs
StatePublished - Aug 1 2017

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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