Bandgap tunability in Zn(Sn,Ge)N(2) semiconductor alloys.

Narang, Prineha; Chen, Shiyou; Coronel, Naomi C; Gul, Sheraz; Yano, Junko; Wang, Lin-Wang; Lewis, Nathan S; Atwater, Harry A · Adv Mater · 2014

basic_science · Level V

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Abstract

ZnSn1-x Gex N2 direct bandgap semiconductor alloys, with a crystal structure and electronic structure similar to InGaN, are earth-abundant alternatives for efficient, high-quality optoelectronic devices and solar-energy conversion. The bandgap is tunable almost monotonically from 2 eV (ZnSnN2 ) to 3.1 eV (ZnGeN2 ) by control of the Sn/Ge ratio.