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

doi:10.1063/1.2132073

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

Department of Physics

Research output: Contribution to journal › Article › peer-review

344 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 language	English
Article number	203508
Pages (from-to)	1-3
Number of pages	3
Journal	Applied Physics Letters
Volume	87
Issue number	20
DOIs	https://doi.org/10.1063/1.2132073
Publication status	Published - 2005 Nov 14

Bibliographical note

Funding Information:
The work undertaken at Seoul National University was supported by the Nano Systems Institute under the National Core Research Center program of the Korea Science and Engineering Foundation.

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2132073

Cite this

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

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.",

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doi = "10.1063/1.2132073",

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AU - Jeon, Heonsu

AU - Park, Yoon Soo

AU - Cho, Jaehee

AU - Im, Jin Seo

AU - Sone, Cheolsoo

AU - Park, Yongjo

AU - Choi, Won Jun

AU - Park, Q. Han

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Y1 - 2005/11/14

N2 - 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.

AB - 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.

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

Abstract

Bibliographical note

ASJC Scopus subject areas

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