Zinc Selenide Evaporation Material (ZnSe Granule)

Zinc Selenide Evaporation Material (ZnSe Granule)

Density： 5.3 g/cm3 

Purity： 99.999% 

Melting point: 1526 ℃
Propertiess of the solid substance： Yellow block or granular, Insoluble in water

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： Transmission range 600 ～ 20000nm
Refractive index： at 550nm ～ 2.58, at 1000nm ～ 2.48, at 10500nm ～ 2.4

Hints on evaporation： Evaporation with boat on molybdenum.
Evaporation temperature： about 900 ℃

Manufacturing Process

Granule: Material synthesis ---> Crush ---> Screening ---> Checking ---> Packing

Talbed: Material synthesis ---> Milling ---> Screening ---> CP(Forming) ---> Sinter ---> Checking ---> Packing

Specification

Granular: 3-6mm, 1-10mm

Tablet: Dia10mmX5mm, custom-made

Applications

Applications---IR coatings. 

Our Advantage about Zinc Selenide Evaporation Material (ZnSe Granule)

China rare metal material co.,limited (CRM) is an experter in manufacture Zinc Selenide Evaporation Mateiral as evaporation material . All Zinc Selenide Evaporation Mateiral are manufacture by programs with  with the highest possible density and smallest possible average grain size.. 

CRM material co.,limited is specialized in making virous Evaporation Mateiral . We have many raw material compounds line, such as semiconductor line, chemical compounds line, metallurgy line, powder milling line, etc. Moreover, we introduced many advanced technology and equipments from related companies at home and aborad. We also have an experienced research team who have developed many new and special pellets, and also successfully made many trial orders and received many customers satisfaction and long-term friendship. 

All Zinc Selenide Evaporation Mateirals are analyzed using best detection means including chemical analysis, Crystal phase microscope, x ray diffraction(XRD), X-Ray Fluorescence (XRF), Glow Discharge Mass Spectrometry (GDMS), and Inductively Coupled Plasma (ICP).

Reference Information about Zinc Selenide Evaporation Material (ZnSe Granule)

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.
CRM material co.,limited can offer ZnSe material also can offer doped ZnSe, for example Cr-ZnSe, Te-ZnSe and so on. Wellcome you can come here and discuss about this serious material and products.

Applications

• ZnSe is used to form II-VI light-emitting diodes and diode lasers. It emits blue light. It is susceptible to n-type doping with, for instance, halogen elements. P-type doping is more difficult, but can be achieved by introducing nitrogen.
• ZnSe doped with chromium (ZnSe:Cr) has been used as an infrared laser gain medium emitting at about 2.5 μm.
• It is used as an infrared optical material with a remarkably wide transmission wavelength range (0.6 μm to 20 μm). The refractive index is about 2.67 at 550 nm (green), and about 2.40 at 10.6 μm (LWIR). ZnSe is produced as microcrystalline sheets by synthesis from H2Se gas and zinc vapour. Lasertran (trademark of Rohm & Haas) grade is especially free of absorption and inclusions and is used particularly for CO2 laser optics at 10.6 micrometres wavelength. It is thus a very important IR material. In daily life, it can be found as the entrance optic in the new range of "in-ear" clinical thermometers and can be just seen as a small yellow window. Zinc selenide can slowly react with atmospheric moisture if poorly polished, but this is not generally a serious problem. Except where optics are use in spectroscopy or at the brewster angle, antireflection or beamsplitting coatings are generally employed.
• Fragile, breaks easily.
• ZnSe doped with tellurium (ZnSe(Te)) is a scintillator with emission peak at 640 nm, suitable for matching with photodiodes. It is used in x-ray and gamma ray detectors. ZnSe scintillators are significantly different from the ZnS ones.

Related Products of Zinc Selenide Evaporation Material (ZnSe Granule)

Zinc Metal - Zn

Zinc Arsenide - Zn3As2

Zinc Antimonide - ZnSb - Zn3Sb4 - Zn3Sb2

Zinc Fluoride - ZnF2

Zinc Oxide - ZnO

Zinc Phosphide - Zn3P2

Zinc Seleside - ZnSe

Zinc Sulfide - ZnS

Zinc Telluride - ZnTe

Zinc titanate - ZnTiO3

Zinc Aluminum Alloy - ZnAl

Zinc Sliver Alloy - ZnAg

Zinc Magnesium Alloy - ZnMg

Zinc Tin Alloy - ZnSn