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 | |
| Publication status | Published - 2005 Nov 14 |
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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 journal › Article
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TY - JOUR
T1 - Enhanced light extraction from GaN-based light-emitting diodes with holographically generated two-dimensional photonic crystal patterns
AU - Kim, Dong Ho
AU - Cho, Chi O.
AU - Roh, Yeong Geun
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
PY - 2005/11/14
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.
UR - http://www.scopus.com/inward/record.url?scp=27744555240&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=27744555240&partnerID=8YFLogxK
U2 - 10.1063/1.2132073
DO - 10.1063/1.2132073
M3 - Article
VL - 87
SP - 1
EP - 3
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 20
M1 - 203508
ER -