A PhD candidate requested low-roughness double-side polished ZnSe wafers that could be diced into 15 mm × 15 mm squares for optical transmission experiments.
Zinc Selenide (ZnSe) Wafers & Substrates
Zinc Selenide (ZnSe) wafers are widely used in infrared optics, FTIR spectroscopy, CO₂ laser systems, photonics, and semiconductor research. UniversityWafer supplies single-side polished (SSP) and double-side polished (DSP) ZnSe substrates in custom dimensions, thicknesses, and orientations for universities, government laboratories, and industrial research facilities.
UniversityWafer supplied:
- 101.6 mm diameter ZnSe polycrystal substrates
- Double-side polished surfaces
- 10×10 mm and 5×5 mm diced pieces
- High-resistivity ZnSe crystals
- Custom dimensions and thicknesses
Reference #323557 for pricing.
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Custom Thick ZnSe Wafers
Researchers frequently request thick ZnSe substrates for infrared windows and optical experiments. UniversityWafer can supply custom-cut ZnSe pieces with SSP or DSP surfaces.
An adjunct professor requested 44 × 50 mm ZnSe wafers with a thickness of 1 mm for optical experiments.
Available options:
- 44 × 50 mm × 1 mm SSP
- 44 × 50 mm × 1 mm DSP
Reference #323813 for pricing.
Double-Side Polished ZnSe Wafers
Double-side polished ZnSe substrates are commonly used for transmission experiments, FTIR spectroscopy, infrared imaging, and optical coating development.
A postdoctoral researcher requested highly transparent DSP ZnSe substrates for transmission experiments in the 8–12 μm wavelength range.
UniversityWafer supplied:
- 10 × 10 × 1 mm DSP ZnSe
- 20 × 20 × 1 mm DSP ZnSe
- 60/40 scratch-dig surfaces
- Thicknesses ≥500 μm
Reference #270834 for pricing.
ZnSe Wafers for Material Characterization
Pure ZnSe wafers are frequently used for X-ray photoelectron spectroscopy (XPS), optical characterization, FTIR analysis, and infrared experiments.
A graduate student requested 2-inch, 4-inch, and 6-inch ZnSe wafers for material characterization and coating studies.
Reference #325672 for pricing.
ZnSe Surface Preparation Temperature
Published studies show that ZnSe substrates are commonly preheated around 300°C prior to applying oxide coatings. Annealing at 250–350°C improves adhesion while remaining safely below decomposition temperatures.
- Improves coating adhesion
- Removes polishing residues
- Enhances surface stability
- Suitable for SiO₂ and Al₂O₃ coatings
Reference #315891 for details.
ZnSe Wafers for X-Ray Electron Spectroscopy
ZnSe substrates are often used for XPS and surface analysis of polymer coatings.
A PhD candidate requested 10 × 10 × 0.5 mm ZnSe wafers for X-ray electron spectroscopy measurements.
Reference #106750 for pricing.
ZnSe Substrates for Infrared Experiments
ZnSe is one of the most popular infrared materials because of its excellent transmission between 0.5 and 15 μm. Custom thicknesses are available for spectroscopy and optical research.
An assistant professor requested custom ZnSe thicknesses for infrared experiments conducted in a university physics department.
Reference #134400 for pricing.
Zinc Selenide (ZnSe) Applications
Zinc Selenide (ZnSe) is one of the most important II-VI semiconductor materials used in mid-infrared optics, spectroscopy, photonics, and laser systems. Thanks to its high optical transmission from approximately 0.5–15 μm and excellent resistance to thermal shock, ZnSe substrates are widely used in research laboratories and industrial optical components.
CO₂ Laser Optics
ZnSe is considered the standard optical material for high-power CO₂ laser systems operating at 10.6 μm. Common applications include:
- Laser windows
- Focusing lenses
- Beam expanders
- Industrial cutting and welding optics
- Protective laser windows
Infrared Imaging and Spectroscopy
Because ZnSe exhibits excellent transmission in the infrared spectrum, it is commonly used for:
- Thermal imaging systems
- Infrared camera windows
- FTIR spectroscopy cells
- Gas sensing instruments
- Environmental monitoring equipment
- Military and aerospace IR systems
Waveguides, Beam Splitters and Filters
ZnSe substrates are frequently used to fabricate mid-IR photonic devices, including:
- Waveguides
- Etalon filters
- Beam splitters
- Acousto-optic modulators
- Optical resonators
Epitaxy and Thin-Film Deposition Research
ZnSe thin films can be deposited by MBE, MOCVD, pulsed laser deposition and sputtering. ZnSe is commonly studied alongside other II-VI semiconductor materials.
- Blue and UV emitters
- Photodetectors
- Quantum wells and quantum dots
- Heterostructures with ZnS, CdSe, and GaAs
Optical Coatings
ZnSe optics often receive anti-reflection and protective coatings. Surface preparation near 300°C improves coating adhesion for:
- SiO₂ coatings
- Al₂O₃ coatings
- Anti-reflection coatings
- High-power laser coatings
- Hard dielectric coatings
Custom ZnSe Substrates for Research
UniversityWafer supplies custom ZnSe substrates for transmission experiments, spectroscopy, and optical characterization.
- Single-side polished (SSP)
- Double-side polished (DSP)
- Diced substrates
- Thicknesses from 0.3 mm to 2 mm
- Low roughness surfaces
- Custom dimensions
What's In Stock? ZnSe Crystals
UniversityWafer maintains an inventory of Zinc Selenide crystals and multispectral windows for infrared optics, FTIR spectroscopy, beam splitters, and CO₂ laser applications. Current stock includes random orientation, (110), and (111) ZnSe crystals with double-side polished and inspection-polished surfaces.
What's In Stock? Zinc Selenide (ZnSe) Crystals
UniversityWafer stocks Zinc Selenide (ZnSe) crystals, multispectral windows, Brewster plates, rods, and optical blanks for infrared optics, FTIR spectroscopy, CO₂ laser systems, and photonic research.
| # | Type | Size | Orientation / Finish | Qty Available |
|---|---|---|---|---|
| 1 | Random oriented | 16×9×1 mm | 2 sp. | 1 pc |
| 2 | Multispectral window | Ø8×2 mm | — | 4 pcs |
| 3 | EOM blank | 35×3.5×3.5 mm | 3.5×3.5 // (110), 1 side 35×3.5 // (100), inspection polished | 8 pcs |
| 4 | Multispectral window | Ø29×2 mm | Center hole diameter 8 mm, 2 sp., 60/40 | 3 pcs |
| 5 | (110) | 5×5×1 mm | 1 side 60/40 polished, 1 side fine grinded | 1 pc |
| 6 | (110) | 5×5×2 mm | 2 sides inspection polished | 2 pcs |
| 8 | (110) | 6×4×2 mm | 6×4 // (110), all sides 60/40 polished | 28 pcs |
| 9 | Multispectral window | Ø13×0.5 mm | — | 5 pcs |
| 10 | (110) | 20.2×10.2×1.6 mm | 2 sides polished | 5 pcs |
| 11 | EOM blank | 1.5×1.5×30 mm | (110)/(110)/(100), 1.5×1.5 // (110), 1.5×1.5 sides polished | 22 pcs |
| 12 | (110) | Diam. 25.4 mm | Thickness wedge 0.5 deg. Thin side 0.3 mm | 1 pc |
| 14 | Rods, random oriented | Diam. 5×15 mm | Side surface polished | 4 pcs |
| 15 | (110) | 10×10×1 mm | 2 sides 60/40 polished | 5 pcs |
| 16 | (110) | 10×3×1 mm | 2 sides 60/40 polished | 2 pcs |
| 17 | (110) | 10×10×0.5 mm | 2 sides 60/40 polished | 8 pcs |
| 18 | (110) | Ø10×2 mm | 2 sides 60/40 polished | 5 pcs |
| 19 | (111) | 10×10×0.5 mm | 2 sides 60/40 polished | 1 pc |
| 20 | (111) | 25.4×4×1 mm | 2 sp., 60/40 | 1 pc |
| 21 | Random oriented | 20×20×2 mm | 1 side polished, 1 side fine grinded | 5 pcs |
| 22 | Random oriented | 20.2×10.2×1.6 mm | 2 sp. | 2 pcs |
| 23 | Multispectral, Brewster plate | 30×22×3 mm | 4 corner bevels 3×45 deg., 2 sp., 60/40 | 2 pcs |
| 24 | Multispectral window | Diam. 40×3.8 mm | 2 sp., 60/40 | 1 pc |
| 25 | Random oriented rod | Diam. 10×96.75 mm | 2 surfaces diam. 10 are polished 60/40 | 1 pc |
| 26 | (111) | 10×10×0.2 mm | 2 sides 60/40 polished | 7 pcs |
| 27 | (110) | 3×3×4 mm | 2 sp., 3×3 mm // (110) | 4 pcs |
| 28 | (110) | 2×2×3 mm | 2 sp., 2×2 mm // (110) | 3 pcs |
| 29 | (110) | 10×10×4 mm | 2 sp., 60/40 | 5 pcs |
| 30 | (111) | 10×10×1 mm | 2 sp., 60/40 | 4 pcs |
Available ZnSe Configurations
Available ZnSe crystals include random orientation, (110), and (111) substrates with dimensions ranging from 5×5 mm to 40 mm and thicknesses from 0.3 mm to 3.8 mm. Multispectral windows, Brewster plates, rods, and double-side polished substrates are available for infrared optics, spectroscopy, photonic devices, and laser research applications.
Related ZnSe Resources
- Zinc Sulfide (ZnS) Wafers
- Cadmium Selenide (CdSe) Substrates
- Cadmium Telluride (CdTe) Wafers
- II-VI Semiconductor Materials
- Waveguide Substrates
- Beam Splitter Materials
- FTIR Spectroscopy Applications
- Infrared Optical Materials
- CO₂ Laser Materials
- MBE Substrates
- MOCVD Substrates
- Sputtered Thin Films
- Quantum Devices
- Photonic Applications
- Gallium Arsenide (GaAs) Wafers