APPSILON
About
Appsilon is a pioneering technology company that produces lab-grown diamonds using CVD (Chemical Vapor Deposition) technology—a capability held by only a few organizations worldwide. As the first and only producer in Türkiye and the largest in Europe, Appsilon develops high-performance materials that possess the exact physical, chemical, and optical properties of natural diamonds, but with significantly larger dimensions and precisely controlled compositions. These materials play a critical role in defense, aerospace, electronics, and optical systems.
Appsilon operates with full vertical integration and zero external dependency. By designing and manufacturing its own diamond growth reactors, developing proprietary growth recipes, and utilizing in-house cutting and polishing equipment, the company manages the entire production cycle under one roof.
Application Areas
Thermal Management: Leveraging diamond’s status as the material with the highest known thermal conductivity, Appsilon provides cooling solutions for high-power RF components (GaN, SiC) and laser systems.
Optical Systems: The company develops diamond components that offer superior durability and transmittance for Infrared (IR) and high-energy laser windows. Due to its high thermal conductivity, diamond uniquely serves a dual function in these systems.
Quantum Technologies: Appsilon produces specialized, high-purity diamond-based materials containing Nitrogen-Vacancy (NV) centers for quantum sensors and processors.
Semiconductors and Electronics: It provides diamond-based substrates for next-generation power electronics and high-frequency devices.
Strategic Vision
"By localizing strategically critical diamond technologies, Appsilon aims to bolster the technological independence of Türkiye’s defense and aerospace ecosystem."
Strategic R&D: Through operations based in Istanbul and Delft, Appsilon has established strategic partnerships with global universities and defense industry giants.
Sustainability: The company adopts a high-tech production model that is both ethical and characterized by a low environmental footprint.

