Diamond-Like Carbon (DLC)

Diamond-Like Carbon (DLC)

Diamond-Like Carbon (DLC) Coating is an amorphous nanocomposite carbon material (sp3 and sp2 bonds) that exhibits properties similar to that of natural diamond including low friction, high hardness, and high corrosion resistance.

DLC is used throughout the Photonics industry where an external optic requires both anti-reflective properties and the durability to withstand the harshest environments.

While inherent property concerns of DLC, such as compressive stress, can be controlled with process input settings, the real Achilles Heel of a DLC coating are Pinholes. This is attributed to the DLC process and deposition geometry currently used throughout the industry.

Dynasil’s DLC coatings use the Plasma-Enhanced Chemical Vapor Deposition (PE-CVD) method and deposits the carbon towards the top of the chamber which results in Practically Zero Pinholes (PZP) coatings. PE-CVD also offers better control over the DLC properties resulting in a product of the highest quality.

Features

  • Amorphous with sp2 and sp3 bonds
  • Extremely hard like natural diamond
  • Low friction
  • High hardness
  • High corrosion resistance
  • Durability to withstands the harshest environments

Substrates We Can Coat

  • Germanium (Ge)
  • Silicon (Si)
  • Zinc Selenide (ZnSe)
  • Zinc Sulfide (ZnS)
  • Fused Silica
  • Chalcogenides

Learn more about Dynasil’s DLC chamber, our coating capabilities and how it can meet the demanding needs of your customers.

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