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Zinc Selenium (ZnSe) |
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Zinc selenide (ZnSe), is a light yellow binary solid compound. It is an intrinsic semiconductor with a band gap of about 2.7 eV at 25 °C. It has a standard enthalpy of formation of 177.6 kJ/mol at 25 °C. It adopts a zincblende lattice structure with lattice constant a=566.8 picometers.
ZnSe rarely occurs in nature. It is found in the mineral stilleite named after Hans Stille.ZnSe reacts with acids to form toxic hydrogen selenide gas.It is formed by chemical vapour deposition techniques including MOVPE. Applications
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Zinc Selenium (ZnSe) Sputtering Targets (CVD ZnSe) Purity--- 99.99% Density---5.27g/cm3 Refractive Index---2.4-2.58 Transparence Wave Band---- 0.35~23μm Shape --- Discs, Plate, Step (Dia ≤480mm,, Thickness ≥1mm) Rectangle, Sheet, Step (Length ≤410mm, Width ≤270mm, Thickness ≥1mm) Tube( Diameter< 300mm, Thickness >2mm ) |
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Zinc Selenium (ZnSe) Sputtering Targets (CVD ZnSe) Transparence Wave Band---- 0.35~23μm Bending Strength---56MPa Knoop Hardness---130Kg/mm2 Refractive Index---2.403(10.6um ) Transmittance--->65%(3~5um),>70%(8~13um) Absorption coefficient---0.0006/cm(10.6um) Density---5.27g/cm3 Speciafications---Diameter--- <200mm Thickness---<15mm Performance---Good optical homogeneity, wide transmissive wavelength and low absorption coefficient |
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Zinc Selenium (ZnSe) Evaporation Material Density--- 5.3 g/cm3 Purity---99.999% Melting point 1526 ℃ Linear expansion coefficient--- 7.45×10-6 Vapour pressure--- at 500-800℃ 1 Pa ~ 10 Pa Hardness--- (acc. to Knoop) 120 kg/mm2 Properties of thin film---- Hints on evaporation--- |