Plessey, the UK opto-electronic technology solutions provider announced its achievement of developing a novel manufacturing method of green LED which does not require color conversion.
The latest green LEDs are manufactured without color conversion techniques, delivering higher luminance which can be used in Micro LED displays. To native Blue LEDs, usually phosphorus or quantum dot conversion materials are applied for conventional green LED production. These materials then convert short wavelength blue light to red or green wavelengths with efficiency loss.
With this new method formation by Plessey, the native green LEDs are formed inherently using its proprietary GaN-on-Si epitaxial growth process which is similar to the native Blue LEDs with the principal difference coming in the amount of indium that is incorporated in the quantum well structures of the LED.
“Plessey already provides powerful, efficient native Blue micro LEDs and through this innovation in our growth technology, Plessey has produced world leading high performance native green micro LEDs which will provide for next generation display and illuminator devices for our customers.” said Mike Snaith, Chief Operating Officer at Plessey.
