Used in infrared optical components such as windows, lenses, and output couplers for CO2 lasers due to its high transparency in the infrared range. Common in thermal imaging systems, FLIR systems, and spectroscopy equipment. Also employed as a semiconductor material in electroluminescent devices and thin-film transistors. Its wide bandgap makes it suitable for blue and ultraviolet light emitters when doped. Used in some solar cells and photodetectors for specialized applications.