Effects of cell distance on the performance of GaN high-voltage light emitting diodes

Ray-Hua Horng*, Kun Ching Shen, Jia Hua Lin, Yu Wei Kuo, Dong Sing Wuu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The effect of spacing among cell LEDs in high voltage (HV) LEDs performance was investigated in this study. Four kinds of HV LEDs with different spacing are presented. From the results of LEDs output power and luminance intensity distribution, the spacing certainly influences the light extraction of LEDs. The 110% enhanced output power and 10% increased Wall-plug efficiency HV LED was demonstrated with using 80 μm spacing in compared with 20 μm due to the suppression of light absorbed by neighbor cell LEDs.

Original languageEnglish
Title of host publicationWide-Bandgap Semiconductor Materials and Devices 13
Pages11-15
Number of pages5
Edition7
DOIs
StatePublished - 19 Nov 2012
Event13th Symposium on Wide Bandgap Semiconductor Materials and Devices - 221st ECS Meeting - Seattle, WA, United States
Duration: 6 May 201210 May 2012

Publication series

NameECS Transactions
Number7
Volume45
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

Conference13th Symposium on Wide Bandgap Semiconductor Materials and Devices - 221st ECS Meeting
CountryUnited States
CitySeattle, WA
Period6/05/1210/05/12

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  • Cite this

    Horng, R-H., Shen, K. C., Lin, J. H., Kuo, Y. W., & Wuu, D. S. (2012). Effects of cell distance on the performance of GaN high-voltage light emitting diodes. In Wide-Bandgap Semiconductor Materials and Devices 13 (7 ed., pp. 11-15). (ECS Transactions; Vol. 45, No. 7). https://doi.org/10.1149/1.3701520