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 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
Fingerprint Dive into the research topics of 'Enhanced light extraction from GaN-based light-emitting diodes with holographically generated two-dimensional photonic crystal patterns'. Together they form a unique fingerprint.
Cite this
Kim, D. H., Cho, C. O., Roh, Y. G., Jeon, H., Park, Y. S., Cho, J., Im, J. S., Sone, C., Park, Y., Choi, W. J., & Park, Q. H. (2005). Enhanced light extraction from GaN-based light-emitting diodes with holographically generated two-dimensional photonic crystal patterns. Applied Physics Letters, 87(20), 1-3. [203508]. https://doi.org/10.1063/1.2132073