Markets and technology needs for UHB-LEDs

Philippe Roussel

doi:10.1117/12.760009

26 September 2007 Markets and technology needs for UHB-LEDs

Philippe Roussel

Proceedings Volume 6797, Manufacturing LEDs for Lighting and Displays; 679703 (2007) https://doi.org/10.1117/12.760009
Event: Manufacturing LEDs for Lighting and Display, 2007, Berlin, Germany

Abstract

With an annual volume of more than 5 million units of 2" equivalent substrates, GaN-based LED is the main eater of nitride materials targeting a $3.5B market at devices level. The next big challenge for LED business is to take market shares over the general lighting industry and dollar per lumen ($/lm) ratio is the key parameter. Numerous technological improvements are under investigation: - At die level, photonic crystals and surface texturing technologies are jointly developed to increase the light extraction. External Quantum Efficiency EQE has now reached > 75% at R&D level. - At material level, there is a rapid emergence of new substrates for GaN epitaxy and composite substrates in 6" diameter. That is opening new doors to higher LED luminous efficiency and cost reduction toward the gigantic SSL general illumination business.

Citation Download Citation

Philippe Roussel "Markets and technology needs for UHB-LEDs", Proc. SPIE 6797, Manufacturing LEDs for Lighting and Displays, 679703 (26 September 2007); https://doi.org/10.1117/12.760009

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available