AlGaInP light-emitting diodes with stripe patterned omni-directional reflector

Y. J. Lee, T. C. Lu, H. C. Kuo, S. C. Wang, M. J. Liou, C. W. Chang, T. C. Hsu, M. H. Hsieh, M. J. Jou, B. J. Lee

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

An n-side-up AlGaInP-based light-emitting diode (LED) with a stripe-patterned omni-directional reflector (ODR) was fabricated by adopting the adhesive-layer bonding scheme. Comparing to the conventional ODR LED, the stripe-patterned ODR LED significantly enhanced the output power with an only slight higher forward voltage. This improvement was analyzed by the scanning near-field optical microscope (SNOM) and could be attributable to the geometrical shape of stripe patterns that redirects the guided light towards to the escaping cone of the LED surface. The optimized dimension of stripe patterns was also calculated by simply modeling a LED dice with a stripe-patterned ODR structure, according to optical ray-tracing method.

Original languageEnglish
Pages (from-to)643-645
Number of pages3
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume45
Issue number2 A
DOIs
Publication statusPublished - 2006 Feb 8
Externally publishedYes

Fingerprint

reflectors
Light emitting diodes
light emitting diodes
Ray tracing
optical microscopes
ray tracing
adhesives
Cones
Adhesives
near fields
cones
Microscopes
Scanning
scanning
output
Electric potential
electric potential

Keywords

  • AlGaInP
  • Omni-directional reflector (ODR)
  • Scanning near-field optical microscope (SNOM)

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

AlGaInP light-emitting diodes with stripe patterned omni-directional reflector. / Lee, Y. J.; Lu, T. C.; Kuo, H. C.; Wang, S. C.; Liou, M. J.; Chang, C. W.; Hsu, T. C.; Hsieh, M. H.; Jou, M. J.; Lee, B. J.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 45, No. 2 A, 08.02.2006, p. 643-645.

Research output: Contribution to journalArticle

Lee, Y. J. ; Lu, T. C. ; Kuo, H. C. ; Wang, S. C. ; Liou, M. J. ; Chang, C. W. ; Hsu, T. C. ; Hsieh, M. H. ; Jou, M. J. ; Lee, B. J. / AlGaInP light-emitting diodes with stripe patterned omni-directional reflector. In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 2006 ; Vol. 45, No. 2 A. pp. 643-645.
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