CaZnOS

CaZnOS is a quaternary semiconductor compound combining calcium, zinc, oxygen, and sulfur—a member of the emerging class of mixed-anion semiconductors that blend oxide and sulfide chemistries. This material is primarily investigated in research settings for photovoltaic and optoelectronic applications, where its tunable bandgap and potential for earth-abundant, non-toxic device fabrication position it as an alternative to conventional cadmium-based or lead-based semiconductors. The oxide-sulfide composition offers theoretical advantages in light absorption and charge transport, making it of interest for thin-film solar cells and visible-light photocatalysis, though it remains largely in the laboratory development phase.