Theoretical study on the kesterite solar cells based on Cu<sub>2</sub>ZnSn(S,Se)<sub>4</sub> and related photovoltaic semiconductors

Theoretical study on the kesterite solar cells based on Cu₂ZnSn(S,Se)₄ and related photovoltaic semiconductors

Ma Ji-Chao¹, Wei Gao-Feng^{1, †}, Liu Dan-Dan²

(color online) The calculated bandgaps of the Cu₂ZnSn(S_1−xSe_x)₄ alloys using the (a) GGA functional and (b) HSE functional, respectively. Adapted from Ref. [42].