CsInSnS4

CsInSnS4 is a quaternary chalcogenide semiconductor compound containing cesium, indium, tin, and sulfur elements, belonging to the family of metal sulfide semiconductors. This material is primarily of research interest for photovoltaic and optoelectronic applications, where its bandgap and crystal structure make it a candidate for thin-film solar cells and light-emitting devices as an alternative to more established semiconductors. The compound represents an emerging class of earth-abundant, non-toxic semiconductor materials being explored to reduce reliance on rare-earth or toxic elements used in conventional optoelectronic technologies.