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 crystal structure mutation from (a) zinc-blende ZnS to (b) chalcopyrite CuGaS₂ and (c) CuAu-like CuGaS₂, then to (d) kesterite Cu₂ZnSnS₄, (e) stannite Cu₂ZnSnS₄, and (f) PMCA-Cu₂ZnSnS₄, and the mutation from (g) wurtzite ZnS to (h) wurtzite-chalcopyrite CuGaS₂ and (i) wurtzite-CuAu CuGaS₂, then to (j) wurtzite-kesterite Cu₂ZnSnS₄ and (k) wurtzite-stannite Cu₂ZnSnS₄. Adapted from Refs. [4], [9], and [10].