News
Crystal IS, Inc. Announces World's Best-Performing Ultraviolet LEDs For Clean Water
July 15, 2010
Crystal IS’s proprietary technology shown to be key
for commercial LEDs in disinfection applications.
Green Island, NY – July 15,
2010 – Crystal IS, Inc., the leading developer of ultraviolet light emitting
diodes (UVC LEDs), has revealed devices demonstrating world record efficiency,
power and lifetime at the optimal germicidal wavelength, 250nm. In
recently-published testing results, Crystal IS demonstrated for the first time
that its energy-efficient LEDs have the performance necessary to replace
widely-used mercury-based disinfection lamps. The unique diodes are fabricated
on a proprietary Aluminum Nitride (AlN) substrate.
“Previous efforts to
develop practical LEDs at this wavelength have proven to be very difficult”
said Crystal IS CTO Leo Schowalter.
“Most workers in the field have used conventional substrates, such as sapphire
as the starting material, and have struggled to produce commercially viable lifetime
and power results. Today we are demonstrating that we have overcome many of
those issues.”
The UVC LEDs developed by Crystal IS operate at the
optimal germicidal wavelength, and their proven efficacy, coupled with low
power requirements, small size, and longer lifespan, make the diodes ideal for
use in water and air sterilization products. Initial applications will include
residential and office point-of-use systems such as water coolers and
counter-top systems providing cleantech alternatives to bottled water. The
technology roadmap also includes large-scale applications in industrial and
municipal purification, where long-lasting, energy-efficient LEDs are ideal
replacements for existing mercury-based light sources.
“We are now moving into our
next stage of evolution as we shift our focus from research orientation to
technology improvement and commercialization” said Dr. Steven Berger CEO, “we
are expanding our investor and partner base to take a prime position in this
emerging market.”
About
Crystal IS
Crystal IS, Inc. is the market leader in the
commercialization of ultraviolet light emitting diodes (UV LEDs) on aluminum
nitride substrates for the cost-effective production of long lasting, energy
efficient, water and air purification devices. Visit www.crystal-is.com for more
information.
For press or business
inquiries, please contact CEO Steven
Berger at berger@crystal-is.com.
Properties of Mid-Ultraviolet Light Emitting Diodes Fabricated from Pseudomorphic Layers on Bulk Aluminum Nitride Substrates
James R. Grandusky, Shawn R. Gibb, Mark C. Mendrick, and Leo J. Schowalter
URL: http://apex.ipap.jp/link?APEX/3/072103/
DOI: 10.1143/APEX.3.072103
Performance and reliability of ultraviolet-C pseudomorphic light emitting diodes on bulk AlN substrates
James Grandusky, Yongjie Cui, Shawn Gibb, Mark Mendrick, and Leo Schowalter
Phys. Status Solidi C 7
URL: http://www3.interscience.wiley.com/journal/123500614/abstract
No. 7-8, 2199-2201 (2010) / DOI
10.1002/pssc.200983635