CVD Zinc Sulfide Window
CVD zinc sulfide is chemically inert, highly pure, water-insoluble, moderately dense, and easy to process, widely used for infrared windows, domes, and optics. Like zinc selenide (ZnSe), zinc sulfide (ZnS) has good refractive-index uniformity and consistency, providing good image transmission over 8000nm-12000nm. Mid-infrared transmission is also high, but absorption/scattering increase at shorter wavelengths. Compared with zinc selenide (ZnSe), it is cheaper and harder, has twice the fracture strength, and better withstands harsh environments. Zinc-sulfide crystals serve many fields through excellent optoelectronic and physicochemical properties. Optoelectronics: detectors, light-emitting diodes (LEDs), and enhanced fluorescent materials for screens and cathode-ray tubes. Optical communications: blue-laser mirrors/output windows, laser fiber-amplifier gain media, and intracavity materials. Solar cells: substitutes for transparent conductive oxides (TCO) to improve efficiency. Optical materials: high index and good transparency suit windows, lenses, filters, and infrared windows. Electronics: semiconductor materials for photoresistors, photodiodes, and other devices. Other uses: white pigments/fillers in coatings and paints with good hiding power and weather resistance; catalysts for reactions such as photocatalytic water splitting for hydrogen; rubber/plastic fillers and reinforcements improving hardness, wear resistance, and strength. Good X-ray and γ-ray absorption also supports radiation-shielding materials and protective clothing. Overall, zinc sulfide is a valuable semiconductor with broad use in optoelectronics, optical communications, solar cells, optical materials, electronics, and other fields.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Machinable Shapes | Circular, Rectangular, Polygonal and Other Shapes |
| Size Range - Diameter (Maximum Diagonal) | Φ8-Φ300mm |
| Size Range - Thickness | 0.05-50mm |
| Surface Figure PV | Reflected PV Better Than 1/4λ, Transmitted PV Better Than 1/10λ |
| Surface Finish | 10-5 20-10 40-20 |
| Surface Roughness | Less Than 5nm |
| Parallelism | Less Than 20″ |
| Coating | Coating Customizable to Customer Requirements |
| Density [CVD Zinc Sulfide] | 4.09 g/cm3 |
| Density [Multispectral CVD Zinc Sulfide] | 4.09 g/cm3 |
| Melting Point [CVD Zinc Sulfide] | 1827 ℃ |
| Melting Point [Multispectral CVD Zinc Sulfide] | 1827 ℃ |
| Electrical Resistivity [CVD Zinc Sulfide] | ~10¹² |
| Electrical Resistivity [Multispectral CVD Zinc Sulfide] | ~10¹³ |
| Chemical Purity [CVD Zinc Sulfide] | 99.9996 % |
| Chemical Purity [Multispectral CVD Zinc Sulfide] | 99.9996 % |
| Coefficient of Thermal Expansion [CVD Zinc Sulfide; 273K] | 6.6*10⁻⁶@273K |
| Coefficient of Thermal Expansion [Multispectral CVD Zinc Sulfide; 273K] | 6.3*10⁻⁶@273K |
| Coefficient of Thermal Expansion [CVD Zinc Sulfide; 373K] | 7.3*10⁻⁶@373K |
| Coefficient of Thermal Expansion [Multispectral CVD Zinc Sulfide; 373K] | 7.0*10⁻⁶@373K |
| Thermal Conductivity [CVD Zinc Sulfide; 298K] | 16.7@298K |
| Thermal Conductivity [Multispectral CVD Zinc Sulfide; 298K] | 27.2@298K |
| Heat Capacity [CVD Zinc Sulfide; 298K] | 0.469@298K |
| Heat Capacity [Multispectral CVD Zinc Sulfide; 298K] | 0.515@298K |
| Knoop Hardness [CVD Zinc Sulfide] | 200-235 kg/mm² |
| Knoop Hardness [Multispectral CVD Zinc Sulfide] | 160 kg/mm² |
| Flexural Strength [CVD Zinc Sulfide] | 103 MPa |
| Young's Modulus [CVD Zinc Sulfide] | 74.5 GPa |
| Young's Modulus [Multispectral CVD Zinc Sulfide] | 74.5 GPa |
| Poisson’s Ratio [CVD Zinc Sulfide] | 0.29 |
| Poisson’s Ratio [Multispectral CVD Zinc Sulfide] | 0.28 |
| Transmission Wavelength Range [CVD Zinc Sulfide] | 1000nm-14000nm |
| Transmission Wavelength Range [Multispectral CVD Zinc Sulfide] | 370nm-14000nm |
| Refractive Index Inhomogeneity ΔN/N [CVD Zinc Sulfide; 10600nm] | <7.3*10⁻⁴@10600nm |
| Refractive Index Inhomogeneity ΔN/N [Multispectral CVD Zinc Sulfide; 632.8nm] | <0.2*10⁻⁴@632.8nm |
| Absorption Coefficient [CVD Zinc Sulfide; 10600nm] | 0.2@10600nm |
| Absorption Coefficient [Multispectral CVD Zinc Sulfide; 10600nm] | 0.2@10600nm |
| Thermo-Optic Coefficient (298-358K) dn/dT [CVD Zinc Sulfide; 1150nm; 298-358K] | 4.6*10⁻⁵@1150nm |
| Thermo-Optic Coefficient (298-358K) dn/dT [Multispectral CVD Zinc Sulfide; 632.8nm; 298-358K] | 5.43*10⁻⁵@632.8nm |
| Thermo-Optic Coefficient (298-358K) dn/dT [CVD Zinc Sulfide; 3390nm; 298-358K] | 4.3*10⁻⁵@3390nm |
| Thermo-Optic Coefficient (298-358K) dn/dT [Multispectral CVD Zinc Sulfide; 1150nm; 298-358K] | 4.21*10⁻⁵@1150nm |
| Thermo-Optic Coefficient (298-358K) dn/dT [CVD Zinc Sulfide; 10600nm; 298-358K] | 4.1*10⁻⁵@10600nm |
| Thermo-Optic Coefficient (298-358K) dn/dT [Multispectral CVD Zinc Sulfide; 3390nm; 298-358K] | 3.87*10⁻⁵@3390nm |
| Refractive Index Variation with Wavelength (CVD Zinc Sulfide at 20℃)-Refractive Index (n) [CVD Zinc Sulfide; 20℃; 620nm] | 2.355 |
| Refractive Index Variation with Wavelength (CVD Zinc Sulfide at 20℃)-Refractive Index (n) [CVD Zinc Sulfide; 20℃; 9800nm] | 2.203 |
| Refractive Index Variation with Wavelength (CVD Zinc Sulfide at 20℃)-Refractive Index (n) [CVD Zinc Sulfide; 20℃; 1000nm] | 2.292 |
| Refractive Index Variation with Wavelength (CVD Zinc Sulfide at 20℃)-Refractive Index (n) [CVD Zinc Sulfide; 20℃; 10600nm] | 2.192 |
| Refractive Index Variation with Wavelength (CVD Zinc Sulfide at 20℃)-Refractive Index (n) [CVD Zinc Sulfide; 20℃; 3800nm] | 2.253 |
| Refractive Index Variation with Wavelength (CVD Zinc Sulfide at 20℃)-Refractive Index (n) [CVD Zinc Sulfide; 20℃; 11400nm] | 2.180 |
| Refractive Index Variation with Wavelength (CVD Zinc Sulfide at 20℃)-Refractive Index (n) [CVD Zinc Sulfide; 20℃; 5000nm] | 2.246 |
| Refractive Index Variation with Wavelength (CVD Zinc Sulfide at 20℃)-Refractive Index (n) [CVD Zinc Sulfide; 20℃; 12200nm] | 2.167 |
| Refractive Index Variation with Wavelength (CVD Zinc Sulfide at 20℃)-Refractive Index (n) [CVD Zinc Sulfide; 20℃; 7000nm] | 2.232 |
| Refractive Index Variation with Wavelength (CVD Zinc Sulfide at 20℃)-Refractive Index (n) [CVD Zinc Sulfide; 20℃; 13800nm] | 2.132 |
| Refractive Index Variation with Wavelength (CVD Zinc Sulfide at 20℃)-Refractive Index (n) [CVD Zinc Sulfide; 20℃; 9000nm] | 2.212 |
| Refractive Index Variation with Wavelength (CVD Zinc Sulfide at 20℃)-Refractive Index (n) [CVD Zinc Sulfide; 20℃; 14200nm] | 2.126 |
| Refractive Index Variation with Wavelength (Multispectral CVD Zinc Sulfide at 20℃)-Refractive Index (n) [Multispectral CVD Zinc Sulfide; 20℃; 400nm] | 2.545 |
| Refractive Index Variation with Wavelength (Multispectral CVD Zinc Sulfide at 20℃)-Refractive Index (n) [Multispectral CVD Zinc Sulfide; 20℃; 8000nm] | 2.223 |
| Refractive Index Variation with Wavelength (Multispectral CVD Zinc Sulfide at 20℃)-Refractive Index (n) [Multispectral CVD Zinc Sulfide; 20℃; 1010nm] | 2.292 |
| Refractive Index Variation with Wavelength (Multispectral CVD Zinc Sulfide at 20℃)-Refractive Index (n) [Multispectral CVD Zinc Sulfide; 20℃; 9000nm] | 2.213 |
| Refractive Index Variation with Wavelength (Multispectral CVD Zinc Sulfide at 20℃)-Refractive Index (n) [Multispectral CVD Zinc Sulfide; 20℃; 2060nm] | 2.264 |
| Refractive Index Variation with Wavelength (Multispectral CVD Zinc Sulfide at 20℃)-Refractive Index (n) [Multispectral CVD Zinc Sulfide; 20℃; 10000nm] | 2.201 |
| Refractive Index Variation with Wavelength (Multispectral CVD Zinc Sulfide at 20℃)-Refractive Index (n) [Multispectral CVD Zinc Sulfide; 20℃; 3500nm] | 2.255 |
| Refractive Index Variation with Wavelength (Multispectral CVD Zinc Sulfide at 20℃)-Refractive Index (n) [Multispectral CVD Zinc Sulfide; 20℃; 11250nm] | 2.183 |
| Refractive Index Variation with Wavelength (Multispectral CVD Zinc Sulfide at 20℃)-Refractive Index (n) [Multispectral CVD Zinc Sulfide; 20℃; 4500nm] | 2.250 |
| Refractive Index Variation with Wavelength (Multispectral CVD Zinc Sulfide at 20℃)-Refractive Index (n) [Multispectral CVD Zinc Sulfide; 20℃; 12000nm] | 2.171 |
| Refractive Index Variation with Wavelength (Multispectral CVD Zinc Sulfide at 20℃)-Refractive Index (n) [Multispectral CVD Zinc Sulfide; 20℃; 5000nm] | 2.247 |
| Refractive Index Variation with Wavelength (Multispectral CVD Zinc Sulfide at 20℃)-Refractive Index (n) [Multispectral CVD Zinc Sulfide; 20℃; 13000nm] | 2.153 |
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