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Optimized Thermal Management From a Chip to a Heat Sink for High-Power GaN-Based Light-Emitting Diodes

✍ Scribed by Ray-Hua Horng; Jhih-Sin Hong; Yu-Li Tsai; Dong-Sing Wuu; Chih-Ming Chen; Chia-Ju Chen


Book ID
114620082
Publisher
IEEE
Year
2010
Tongue
English
Weight
760 KB
Volume
57
Category
Article
ISSN
0018-9383

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## Abstract We report a high power efficiency (PE) of 44.7 ± 0.5 lm/W, high external quantum efficiency (EQE) of 19.7 ± 0.1% at 500 Cd/m^2^, and efficiency roll‐off of only 4% of the peak value at a useful brightness of 1000 Cd/m^2^ from orange‐red emitting, organic light emitting diodes featuring