What is Zinc Sulfide (ZnS) Pellets?

Zinc Sulfide (ZnS) Pellets are high-purity, solid-state materials used in various optical, electronic, and industrial applications. ZnS is a wide-bandgap semiconductor with excellent optical transparency in the visible and infrared spectrum.

Chemical Properties and CAS Number

• Material: Zinc Sulfide (ZnS)
• CAS Number: 1314-98-3
• Molecular Weight: 97.46 g/mol
• Density: 4.09 g/cm³
• Melting Point: 1,850°C (sublimes)
• Crystal Structure: Cubic (sphalerite) or hexagonal (wurtzite)
• Bandgap: ~3.6 eV
• Appearance: White to yellowish powder or solid pellet
• Solubility: Insoluble in water, soluble in acids

Applications of Zinc Sulfide (ZnS) Pellets

1. Optical Coatings & Infrared Windows

ZnS is used in optical coatings for infrared (IR) windows, lenses, and optical sensors. It has excellent IR transmission properties and is widely used in night vision systems, thermal imaging cameras, and laser optics.

2. Semiconductor & Electronics

Due to its wide-bandgap properties, ZnS is employed in optoelectronics, LEDs, and phosphors in electroluminescent panels.

3. X-ray and Cathode Ray Tube (CRT) Screens

ZnS is a key phosphor material used in X-ray screens, cathode-ray tubes, and scintillation detectors.

4. Thin-Film Deposition & Sputtering Targets

ZnS pellets are used in PVD (Physical Vapor Deposition) and sputtering techniques to create uniform thin films for high-performance coatings in aerospace, military, and industrial applications.

5. Pigments & Fluorescent Materials

ZnS is used as a luminescent pigment in glow-in-the-dark paints, coatings, and fluorescent applications.

Pricing of Zinc Sulfide (ZnS) Pellets

The cost of ZnS pellets varies based on purity, size, and bulk quantity:

• Lab-Scale Orders: $50 – $300 per 100g
• Industrial-Scale Orders: $500 – $2,000 per kg
• Custom Orders: Prices depend on size, shape, and purity level

Factors Influencing Pricing

• Purity level (99.9% – 99.999%)
• Granule size and uniformity
• Bulk order discounts
• Customization for specific applications
• Shipping and packaging costs

Conclusion

Zinc Sulfide (ZnS) Pellets are essential materials in optical coatings, semiconductor applications, phosphors, and thin-film deposition. Their unique optical and electronic properties make them highly valuable for industrial, aerospace, and research applications.