Close

Search

Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
share
Email Facebook Twitter Google+ LinkedIn Comments

Elusive Green LED Demonstrated

Photonics.com
Jul 2011
PHOENIX, July 12, 2011 — RoseStreet Labs (RSL) has demonstrated a long-wavelength LED device with low-cost silicon wafer substrates that could improve solid-state lighting, LED backlighting and next-generation display technology.

Green and longer-wavelength LEDs have been sought for an extensive period to fill a high-value gap in the rapidly growing global LED market for lighting and illumination, where energy efficiency, cost and miniaturization are critical product characteristics.


RoseStreet Labs' green and longer-wavelength LED using thin-film InGaN-on-silicon technology. (Image: RoseStreet Labs)

RSL said the device complements its proprietary thin-film InGaN-on-silicon technology for high-efficiency photovoltaic applications and power devices. These longer-wavelength devices are fabricated using commercial-scale deposition tools at the company's Nitride Research Center. Silicon substrates have a substantial cost advantage over the more traditional sapphire or silicon carbide substrates typically used in LED fabrication.

Green or longer-wavelength nitride-based LEDs are very challenging to fabricate compared with UV and Blue LEDs because of decreasing quantum efficiencies and have remained a tough milestone for the LED industry.

RSL said it will package the green and longer-wavelength LEDs through its sister company, FlipChip International, adding that the technology could be commercialized in two to three years, with migration to 200-mm silicon substrates. RSL scientists also say they have demonstrated initial tunability of this technology to multicolor and white light spectrums.

For more information, visit: www.rosestreetlabs.com  

AmericasArizonablue LEDsBusinessConsumerdisplay technologyDisplaysFlipChip Internationalgreen LEDgreen photonicsLED backlightinglight sourceslong-wavelength LED devicephotovoltaicsRoseStreet LabsRSLsilicon wafter substratesolid-state lightingthin-film InGaNwhite light spectrumsLEDs

Comments
Terms & Conditions Privacy Policy About Us Contact Us
back to top

Facebook Twitter Instagram LinkedIn YouTube RSS
©2018 Photonics Media, 100 West St., Pittsfield, MA, 01201 USA, info@photonics.com
x We deliver – right to your inbox. Subscribe FREE to our newsletters.
We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.