Plessey improves method for making green LEDs

Plessey, an embedded technologies developer working in microLED technology for the AR and display markets, has developed its proprietary 2D planar gallium nitride on silicon process to emit green light without the need for color conversion techniques. To produce Green light, LED manufacturers typically apply phosphors or quantum dot conversion materials to native Blue LEDs. These materials then convert short wavelength, typically 450nm, blue light to red or green wavelengths with typically 10% to 30% efficiency.