Comparative study of self-constituent intermediate layers(CuS,SnS,ZnS) for synthesis Cu2ZnSnS4 thin films

• Main Authors: Tzung-JieTsai, 蔡宗傑
• Other Authors: Chuan-Feng Shih
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/61133946991378417473

碩士 === 國立成功大學 === 電機工程學系 === 104 === Cu2ZnSnS4 (CZTS) is a promising absorber material because of its earth abundant and non-toxic constituents. The major challenge for synthesis the high-efficiency CZTS solar cell is the high-density voids and secondary phases at the interface of the CZTS absorber and the Mo back contact. To overcome this problem, we comparatively study the effect of inserting a self-constituent intermediate layer such as CuS, SnS and ZnS between the CZTS and Mo substrate. Influences of these interlayer materials on the phase purity, crystallinity, interface quality and elementary segregation of the CZTS films made by metal precursors were presented. A crack-free, pinhole-free, and high quality CZTS thin film was obtained by insertion of a SnS buffer layer.