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Fairfield Crystal Technology uses a unique process to produce single crystal Zinc Sulfide (ZnS). Our single crystal material is a very high crystalline quality material with dislocation densities less than 50cm-2. ZnS is part of a group of II-VI large bandgap semiconductors with a band gap of 3.6eV that is useful for fabricating a variety of semiconductor devices for commercial and military applications. II-VI-based UV detectors that are visible or solar-blind, with high detection efficiencies, have many important applications that require detection of weak UV radiation against a strong visible or infrared background. These UV detectors have a wide range of civil and defense applications, such as chemical and biological analysis (ozone, pollutants, and chemical and biological agents), flame detection, UV exposure control in photo-lithographic and binder curing processes, UV communications in space, imaging of UV-emitting objects in astronomy.

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SEMICONDUCTOR PRODUCTS/MATERIALS

• Single Crystal Aluminum Nitride (AlN)
• Single Crystal Zinc Sulfide (ZnS)
• Single Crystal Silicon Carbide (SiC)

OPTICAL PRODUCTS/MATERIALS

• Lithium Fluoride
• Zinc Sulfide (ZnS)
• Calcium Fluoride (CaF2)
• Magnesium Fluoride (MgF2)
• Barium Fluoride (BaF2)
• High-Purity Deposition Materials