Na2In4SSe6

Na2In4SSe6 is a quaternary semiconductor compound combining sodium, indium, sulfur, and selenium, belonging to the family of mixed-chalcogenide semiconductors with layered or complex crystal structures. This material is primarily of research interest for photovoltaic and optoelectronic applications, where its tunable bandgap and potential for efficient light absorption make it attractive as an alternative to more conventional semiconductors; it remains largely in the experimental stage but represents the broader class of earth-abundant, non-toxic semiconductor candidates being explored to reduce reliance on scarce or hazardous elements in solar cells and light-emitting devices.