Experimental and first-principles spectroscopy of Cu${}_2$SrSnS${}_4$ and Cu${}_2$BaSnS${}_4$ photoabsorbers

Andrea Crovetto, Zongda Xing, Moritz Fischer +7

The Cu${}_2$BaSnS${}_4$ (CBTS) and Cu${}_2$SrSnS${}_4$ (CSTS) semiconductors have been recently proposed as potential wide band gap photovoltaic absorbers. Although several measurements in…