Cd2 S2

Cd₂S₂ is a cadmium sulfide-based semiconductor compound belonging to the II-VI semiconductor family, known for its direct bandgap and photosensitive properties. This material finds application in optoelectronic devices including photoresistors, photodiodes, and radiation detectors where its light-responsive characteristics are leveraged; it is also investigated for thin-film solar cells and scintillation detection systems. Cadmium sulfides are valued for their tunable optical properties and historical use in early photomultiplier tubes, though modern applications must account for cadmium toxicity regulations in many regions, making alternative II-VI or perovskite semiconductors increasingly preferred for new designs.