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Proceedings Paper

Electrically driven nanoarrow array green LED
Author(s): J.-R. Chang; S.-P. Chang; Y.-C. Chen; K.-P. Sou; Y.J. Cheng; H.-C. Kuo; C.-Y. Chang
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Paper Abstract

An electrically driven nanopyramid green light emitting diode (LED) was demonstrated. The nanopyramid arrays were fabricated from a GaN substrate by patterned nanopillar etch, pillar side wall passivation, and epitaxial regrowth. Multiple quantum wells were selectively grown on the facets of the nanopyramids. The fabricated LED emits green wavelength under electrical injection. The emission exhibits a less carrier density dependent wavelength shift and higher internal quantum efficiency as compared with a reference c-plane sample at the same wavelength. It shows a promising potential for using nanopyramid in high In content LED applications.

Paper Details

Date Published: 6 February 2012
PDF: 6 pages
Proc. SPIE 8278, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVI, 827815 (6 February 2012); doi: 10.1117/12.907749
Show Author Affiliations
J.-R. Chang, National Chiao Tung Univ. (Taiwan)
S.-P. Chang, National Chiao Tung Univ. (Taiwan)
Y.-C. Chen, National Chiao Tung Univ. (Taiwan)
K.-P. Sou, National Chiao Tung Univ. (Taiwan)
Y.J. Cheng, National Chiao Tung Univ. (Taiwan)
Research Ctr. for Applied Sciences (Taiwan)
H.-C. Kuo, National Chiao Tung Univ. (Taiwan)
C.-Y. Chang, National Chiao Tung Univ. (Taiwan)


Published in SPIE Proceedings Vol. 8278:
Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVI
Klaus P. Streubel; Heonsu Jeon; Li-Wei Tu; Norbert Linder, Editor(s)

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