NDLI: Simulation for light power distribution of 3D InGaN/GaN MQW LED with textured surface

Content Provider	IEEE Xplore Digital Library
Author	Li-Wen Cheng Yang Sheng Chang-Sheng Xia Wei Lu Lestrade, M. Zhan-Ming Li
Copyright Year	2010
Description	Author affiliation: National laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Science, 200083, China (Li-Wen Cheng; Wei Lu) \|\| Crosslight Software Inc., 121-3989 Henning Drive, Burnaby, BC, V5C 6P8, Canada (Lestrade, M.; Zhan-Ming Li) \|\| Crosslight Software China, Suite 906, Building JieDi, 2790 Zhongshan Bei Road, Shanghai 200063, China (Yang Sheng; Chang-Sheng Xia)
Abstract	In this paper, we introduce a full 3D simulation for light power distribution of an InGaN/GaN MQW LED with textured surface. Device simulation was performed by APSYS software to get power distribution of light source inside the LED. Based on this, ray tracing simulation was carried out to get light power distribution outside the LED. During the process of ray tracing, the textured surface was treated as a special boundary which means its reflectivity, transmittance and refraction angle are not calculated according to Fresnel equations, but obtained from data extracted from Finite-difference time-domain(FDTD) method. By comparing ray tracing result with and without textured surface, we found that textured surface not only smoothed transmitted power distribution, but also greatly improved power extraction efficiency which can be further improved by changing texture geometry.
Starting Page	1
Ending Page	2
File Size	976868
Page Count	2
File Format	PDF
ISBN	9781424470167
ISSN	21583234
e-ISBN	9781424470174
DOI	10.1109/NUSOD.2010.5595695
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-09-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Surface texture Light emitting diodes Surface waves Optical surface waves Three dimensional displays Gallium nitride Software
Content Type	Text
Resource Type	Article

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