CVD Zinc Sulfide (ZnS)
CVD Zinc Sulfide (ZnS)
CVD Zinc Sulfide (ZnS)
CVD Zinc Sulfide (ZnS)

CVD Zinc Sulfide (ZnS)

  • element:Zinc Sulfide (ZnS)
  • purity:High Purity
  • shape:Lenses, Windows, Domes, Custom Shapes
  • specification:Customized according to customer requirements
  • packaging:Vacuum packaging, carton, wooden box

CVD zinc sulfide (ZnS) is a high-performance optical material synthesized using chemical vapor deposition to achieve exceptional purity, uniformity, and optical clarity. Known for its superior infrared transmission, high resistance to environmental degradation, and excellent mechanical durability, ZnS is widely used in laser systems, infrared windows, thermal imaging, and advanced scientific applications. Its low absorption and strong optical properties make it an essential material for demanding optical systems.

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Product Overview:
CVD Zinc Sulfide (ZnS) is a high-purity, chemically inert material widely used in the production of infrared optical components. Its excellent optical and mechanical properties make it an ideal material for manufacturing infrared lenses, windows, domes, and other optical components. ZnS, produced via the Chemical Vapor Deposition (CVD) process, demonstrates excellent transmission in the mid-infrared wavelength range (8μm–12μm) and is particularly suited for high-precision infrared optical systems.

Key Features:

  • High Transparency:Exhibits excellent transmittance in the 8μm–12μm wavelength range, making it ideal for mid-infrared optical systems.
  • Superior Refractive Index Uniformity and Consistency:Ensures stable image transmission within optical systems, maintaining high performance across various applications.
  • High Hardness and Fracture Strength:ZnS is twice as strong as zinc selenide, providing superior resistance to harsh environmental conditions and mechanical stresses.
  • Chemical Stability:Insoluble in water and highly chemically inert, ZnS retains its optical properties under a wide range of environmental conditions.
  • Ease of Machining:Easily processed and molded, making it suitable for custom-shaped optical elements to meet specific application requirements.

Applications:

  • Infrared Optical Components Manufacturing:Used to manufacture infrared lenses, windows, domes, and other optical components, widely applied in infrared imaging and spectroscopic systems.
  • Military and Aerospace Applications:Due to its high hardness and ability to withstand harsh environments, CVD ZnS is frequently used in missile domes and infrared windows for military aircraft.
  • Optical Instruments:Suitable for high-precision optical systems, particularly in the infrared wavelength range, where it provides stable and clear image transmission performance.
Physical PropertyCVD Zinc Sulfide
Density4.09 g/cm³
Resistivity~10¹² Ω·cm
Melting Point1827 ℃
Chemical Purity100.00%
Thermal Expansion6.6×10⁻⁶ @ 273K
7.3×10⁻⁶ @ 373K
Thermal Conductivity16.7 W/(m·K) @ 298K
Specific Heat Capacity0.469 J/(g·K) @ 298K
Knoop Hardness200-235 kg/mm²
Bending Strength103 MPa
Young's Modulus74.5 GPa
Poisson's Coefficient0.29
Optical PropertyCVD Zinc Sulfide
Transmission Range1-14 μm
Refractive Index Inhomogeneity<7.3×10⁻⁴ @ 10.6μm
Absorption Coefficient0.2 /cm @ 10.6μm
Thermal Light Coefficient4.6×10⁻⁵ @ 1150nm
4.3×10⁻⁵ @ 3390nm
4.1×10⁻⁵ @ 10.6μm
PropertyValue
Material NameCVD Zinc Sulfide
Available Size3-200mm
Growing MethodCVD (Chemical Vapor Deposition)
Transmittance Range1-14μm
Blank ShapeRound, rectangular, wedge, lens, step drilled, special-shaped

 

 

Wavelength (nm)Refractive Index (n)Wavelength (nm)Refractive Index (n)
6202.35598002.203
10002.292106002.192
38002.253114002.18
50002.246122002.167
70002.232138002.132
90002.212142002.126
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CVD Zinc Sulfide (ZnS)CVD Zinc Sulfide (ZnS)

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