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Proceedings Paper

Transport equation model for the optics of light-emitting diodes with arbitrary surface microstructure
Author(s): Oskari Heikkilä; Jani Oksanen; Jukka Tulkki
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Paper Abstract

We present a transport equation model for the light emission and transport in light-emitting diodes. Using the model, we compare the brightness and quantum efficiency of LEDs with light extraction through a smooth, light scattering or perfectly transparent planar surface. We show that surface roughened LEDs can perform almost ideally and that the thickness of the active region in LEDs has a large effect on the photon extraction and the overall efficiency.

Paper Details

Date Published: 21 February 2011
PDF: 8 pages
Proc. SPIE 7933, Physics and Simulation of Optoelectronic Devices XIX, 793315 (21 February 2011); doi: 10.1117/12.873551
Show Author Affiliations
Oskari Heikkilä, Aalto Univ. (Finland)
Jani Oksanen, Aalto Univ. (Finland)
Jukka Tulkki, Aalto Univ. (Finland)

Published in SPIE Proceedings Vol. 7933:
Physics and Simulation of Optoelectronic Devices XIX
Bernd Witzigmann; Fritz Henneberger; Yasuhiko Arakawa; Alexandre Freundlich, Editor(s)

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