Explanation

It is one of the II-VI compound semiconductor materials. sphalerite type or fibrous zinc type structure, band gap width 3.6 (3.8) eV, direct transition type energy band structure. Generally, it is of strong compensation single electronic conduction type. There are significant electroluminescence and photoluminescence luminescence effects, luminescence covers all visible to ultraviolet light bands, and mixing different activators (molybdenum, aluminum, manganese, lead, silver, chlorine, etc.) can obtain luminescence from blue to orange. polycrystal is used as window or lens and its coating in visible light, infrared optical system and high-power laser. single crystal is used for laser, luminescence and light modulator. The microcrystalline powder is mainly used for electroluminescence, photoluminescence, cathode-ray and other luminescence displays, as well as for the dyeing process of coatings, paint, rubber, white and opaque glass.

Classification