Interfaces of high-efficiency kesterite Cu<sub>2</sub>ZnSnS(e)<sub>4</sub> thin film solar cells

Interfaces of high-efficiency kesterite Cu₂ZnSnS(e)₄ thin film solar cells

Gao Shoushuai¹, Jiang Zhenwu¹, Wu Li², Ao Jianping^{1, †}, Zeng Yu¹, Sun Yun¹, Zhang Yi^{1, ‡}

(color online) Schematic diagram of the band structure of the CIGS solar cells: (a) without MoSe₂ layer, (b) with MoSe₂ layer.