First-principles study of the new potential photovoltaic absorber: Cu<sub>2</sub>MgSnS<sub>4</sub> compound

First-principles study of the new potential photovoltaic absorber: Cu₂MgSnS₄ compound

Bekki Belmorsli, Amara Kadda^†, El Keurti Mohammed

(color online) The real and imaginary parts of the dielectric function for Cu₂MgSnS₄ in (a) KS, (b) ST, and (c) WS phases along crystallographic directions.