CsPSe4

CsPSe₄ is a cesium-based chalcogenide semiconductor compound belonging to the family of halide perovskite analogs and metal chalcogenides, currently investigated primarily in research settings rather than established industrial production. This material is of interest to the photovoltaic and optoelectronic research community as a potential absorber or functional layer in next-generation solar cells and light-emitting devices, where its wide bandgap and crystal structure may offer advantages in stability or tunability compared to lead-halide perovskites. Engineers would consider this compound when exploring alternative semiconductors for radiation detection, photocatalysis, or solid-state lighting applications where toxicity concerns or operational temperature ranges make conventional semiconductors impractical.