Optics.org
daily coverage of the optics & photonics industry and the markets that it serves
News
Menu
White LEDs
White LEDs like these are based on gallium nitride semiconductors, deposited in ultra-thin layers onto a suitable substrate material. Approximately 80% of GaN-based LEDs of fabricated on sapphire, with most the remainder based on silicon carbide. However, both silicon and gallium nitride itself are expected to find use as substrates in the future. Credit: Citizen Electronics.
Copyright © 2020 SPIE EuropeDesigned by Kestrel Web Services