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Study of structural and optical properties of Cu2ZnSnS4 and Cu2ZnGeS4 thin films synthesized by sulfurization of stacked metallic layers

  • East China Normal University
  • Shanghai University

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Cu2ZnSnS4 and Cu2ZnGeS4 thin films made from the earth abundant and non-toxic materials are quaternary semiconducting compounds which have received increasing interest for solar cells applications. Cu2ZnSnS4 and Cu2ZnGeS4 thin films have been synthesized by sulfurization of radio frequency magnetron sputtered precursors. The structural and optical properties of the thin films have been investigated and discussed. The result of X-ray diffraction demonstrates that the Cu2ZnSnS4 and Cu2ZnGeS4 thin films have kesterite (KS; space group 4) crystal structure. An obvious blue shift is observed in the Raman spectra as smaller Ge replaces Sn. It is due to the fact that the radius of Ge cation is smaller than that of Sn cation, which results in the shrink of the lattice. Further transmission spectra demonstrate that the values of band gap for CZTS and CZGS thin films are 1.54 eV and 1.98 eV, respectively.

源语言英语
主期刊名Energy and Environmental Materials II
编辑Yafang Han, Jiatao Zhang, Jianguo Zhu
出版商Trans Tech Publications Ltd
44-48
页数5
ISBN(印刷版)9783038353935
DOI
出版状态已出版 - 2015
活动Chinese Materials Congress, CMC 2014 - Chengdu, 中国
期限: 4 7月 20147 7月 2014

出版系列

姓名Materials Science Forum
814
ISSN(印刷版)0255-5476
ISSN(电子版)1662-9752

会议

会议Chinese Materials Congress, CMC 2014
国家/地区中国
Chengdu
时期4/07/147/07/14

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