Enhanced light extraction from GaN-based light-emitting diodes with holographically generated two-dimensional photonic crystal patterns

Dong Ho Kim, Chi O. Cho, Yeong Geun Roh, Heonsu Jeon, Yoon Soo Park, Jaehee Cho, Jin Seo Im, Cheolsoo Sone, Yongjo Park, Won Jun Choi, Q Han Park

Research output: Contribution to journalArticle

322 Citations (Scopus)

Abstract

We observed a significant enhancement in light output from GaN-based light-emitting diodes (LEDs) in which two-dimensional photonic crystal (PC) patterns were integrated. Two-dimensional square-lattice air-hole array patterns with a period that varied from 300 to 700 nm were generated by laser holography. Unlike the commonly utilized electron-beam lithographic technique, the holographic method can make patterns over a large area with high throughput. The resultant PC-LED devices with a pattern period of ∼500 nm had more than double the output power, as measured from the top of the device. The experimental observations are qualitatively consistent with the results of three-dimensional finite-difference-time-domain simulation.

Original languageEnglish
Article number203508
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume87
Issue number20
DOIs
Publication statusPublished - 2005 Nov 14

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light emitting diodes
photonics
crystals
output
holography
electron beams
augmentation
air
lasers
simulation

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Enhanced light extraction from GaN-based light-emitting diodes with holographically generated two-dimensional photonic crystal patterns. / Kim, Dong Ho; Cho, Chi O.; Roh, Yeong Geun; Jeon, Heonsu; Park, Yoon Soo; Cho, Jaehee; Im, Jin Seo; Sone, Cheolsoo; Park, Yongjo; Choi, Won Jun; Park, Q Han.

In: Applied Physics Letters, Vol. 87, No. 20, 203508, 14.11.2005, p. 1-3.

Research output: Contribution to journalArticle

Kim, DH, Cho, CO, Roh, YG, Jeon, H, Park, YS, Cho, J, Im, JS, Sone, C, Park, Y, Choi, WJ & Park, QH 2005, 'Enhanced light extraction from GaN-based light-emitting diodes with holographically generated two-dimensional photonic crystal patterns', Applied Physics Letters, vol. 87, no. 20, 203508, pp. 1-3. https://doi.org/10.1063/1.2132073
Kim, Dong Ho ; Cho, Chi O. ; Roh, Yeong Geun ; Jeon, Heonsu ; Park, Yoon Soo ; Cho, Jaehee ; Im, Jin Seo ; Sone, Cheolsoo ; Park, Yongjo ; Choi, Won Jun ; Park, Q Han. / Enhanced light extraction from GaN-based light-emitting diodes with holographically generated two-dimensional photonic crystal patterns. In: Applied Physics Letters. 2005 ; Vol. 87, No. 20. pp. 1-3.
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