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Cu2ZnSnS4 films by paste coating and their optoelectronic properties

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Abstract

Cu2ZnSnS4 (CZTS) thin films were prepared by a paste coating method as the absorb layer of solar cells. This method is more eco-friendly using ethanol as solvent and more convenient than traditional sol–gel method. The effects of sulfurization temperature on properties of thin film were studied. The results of X-ray diffraction and Raman spectroscopy showed the formation of kesterite structure of CZTS films. The scanning electron microscopy images revealed that CZTS thin film obtained at 550 °C were compact and uniform. The optical band gap of the CZTS film was about 1.5 eV, and the CZTS film had an obvious optoelectronic response. Moreover, CZTS solar cell was prepared with a conversion efficiency of 0.47 %.

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Acknowledgments

This work has been financially supported by Funding for Outstanding Doctoral Dissertation in NUAA (BCXJ13-12), Funding of the Jiangsu Innovation Program for Graduate Education (CXLX13-150), National Nature Science Foundation of China (61176062), and a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions.

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Authors and Affiliations

  1. College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 29 Yudao Street, Nanjing, 210016, People’s Republic of China

    Wei Wang, Honglie Shen, Xiancong He & Lei Sun

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  1. Wei Wang
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  2. Honglie Shen
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  3. Xiancong He
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  4. Lei Sun
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Correspondence to Honglie Shen.

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Wang, W., Shen, H., He, X. et al. Cu2ZnSnS4 films by paste coating and their optoelectronic properties. J Mater Sci: Mater Electron 24, 4228–4232 (2013). https://doi.org/10.1007/s10854-013-1389-6

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  • DOI: https://doi.org/10.1007/s10854-013-1389-6

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