45% quantum-efficiency light-emitting diodes with radial outcoupling taper

Wolfgang Schmid; Franz Eberhard; Roland Jaeger; Roger King; Michael Miller; J. Joos; Karl Joachim Ebeling

doi:10.1117/12.382841

17 April 2000 45% quantum-efficiency light-emitting diodes with radial outcoupling taper

Wolfgang Schmid, Franz Eberhard, Roland Jaeger, Roger King, Michael Miller, J. Joos, Karl Joachim Ebeling

Proceedings Volume 3938, Light-Emitting Diodes: Research, Manufacturing, and Applications IV; (2000) https://doi.org/10.1117/12.382841
Event: Symposium on Integrated Optoelectronics, 2000, San Jose, CA, United States

Abstract

10We have investigated efficient light outcoupling from light- emitting diodes (LEDs) by introducing lateral tapers. The concept is based on light generation in the very central area of a circularly symmetric structure. After propagating between two highly reflecting mirrors light is outcoupled in tapered mesa region. By proper processing we achieve quantum and wallplug efficiencies of almost 30% for outcoupling via a planar surface or, respectively, 45% and 44% for encapsulated devices.

Citation Download Citation

Wolfgang Schmid, Franz Eberhard, Roland Jaeger, Roger King, Michael Miller, J. Joos, and Karl Joachim Ebeling "45% quantum-efficiency light-emitting diodes with radial outcoupling taper", Proc. SPIE 3938, Light-Emitting Diodes: Research, Manufacturing, and Applications IV, (17 April 2000); https://doi.org/10.1117/12.382841

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