Products
UVC LEDs
Headquarters
70 Cohoes Avenue
Green Island, NY 12183
United States
Web
https://cisuvc.com
Crystal IS, Inc., an Asahi Kasei company, is an innovative U.S.-based manufacturer of proprietary, high-performance UVC LEDs. Our Klaran line of UVC LEDs are suitable for water, surface and air disinfection in a variety of applications, including consumer and commercial appliances, medical devices and equipment, life sciences and more. Our Optan line of UVC LEDs can be used in water quality monitoring, air and gas sensing and instrumentation applications. Crystal IS powerful and reliable UVC LEDs give customers the flexibility to develop new products that enhance and sustain life.

Crystal IS was founded in 1997 by Leo Schowalter and Glen Slack to develop native Aluminum Nitride (AlN) substrate technology for more powerful and reliable semiconductor devices. Crystal IS scientists developed patented processes for growing active crystal layers such as LEDs on the AlN substrates, while preserving the low defect densities of the AlN. These crystals (termed pseudomorphic epitaxial structures) exhibit sharp interfaces, smooth surfaces with surface roughness of less than one nanometer. These thick pseudomorphic layers, and devices based on them, are not possible when using foreign substrates such as sapphire.

The result has been LED devices with higher efficiencies and longer lifetimes in the 250–280 nm wavelength range than diodes fabricated from other competing technologies such as crystals grown on sapphire.

Fabrication of deep ultraviolet LEDS on traditional sapphire substrates, which are commonly used in blue and green InGaN LEDs, results in 10⁸ dislocations (defects) per square centimeter. Crystal IS uses the Aluminum Nitride (AlN) substrate to fabricate deep ultraviolet LEDs with less than 10⁵ dislocations (defects) per square centimeter. This means high production yields of higher output LEDs at shorter wavelengths.

COVID-19 has prompted researchers, manufacturers, and consumers alike to search for practical solutions that can prevent the spread of this deadly virus. Crystal IS- manufacturer of Klaran UVC LEDs and systems for disinfection- has seen a surge in interest for our high-performance UVC LEDs to potentially combat the virus. OEMs around the world trust Klaran WD Series UVC LEDs and Klaran LE to provide effective surface disinfection in their products.

We are committed to understanding common pathogens better than any UVC LED manufacturer and leveraging this knowledge to create disinfection solutions that enable our partners to succeed, which is why we built and manage our very own on-site microbiology lab.

In order to build the most effective UVC LED-based disinfection systems, it's important to understand the common pathogens that contaminate water, air, and surfaces. At the Crystal IS on-site microbiology lab, we have the resources to safely study common pathogens in a controlled environment and assess the performance of UVC LED disinfection systems against these pathogens. Being able to determine the performance of our products under real-life field applications allows us to create better disinfection solutions.
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