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AEM Deposition

Zinc Sulfide Evaporation Material (ZnS)

Zinc Sulfide Evaporation Material (ZnS)
Zinc Sulfide Evaporation Material (ZnS)
Material Type Zinc Sulfide
Symbol ZnS
Color/Appearance White, Crystalline Solid
Melting Point (°C) 1,700
Z Ratio 0.775
E-Beam Good
Thermal Evaporation Techniques Boat:  Ta, Mo
E-Beam Crucible Liner Material Tantalum, Molybdenum
Temp. (°C) for Given Vap. Press. (Torr) 10-4:  ~800
Comments Preheat gently to outgas. Films partially decompose. n=2.356.


Zinc selenide is a chemical compound with a chemical formula of ZnSe. It is yellow to red in appearance with a melting point of >1,100°C, a density of 5.42 g/cc, and a vapor pressure of 10-4 Torr at 660°C. Zinc selenide is heavily used as an infrared optical material. It is evaporated under vacuum for infrared optical coatings, more specifically, night vision optical coating.

Material Notes

AEM Deposition provides Zinc selenide pellets and Zinc selenide powder for sale, purity is 99.99%, 99.999%.
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