Abstract
The results of our analysis, which was done by using the finite-difference, time-domain (FDTD) methods suggest that surface-structured light-emitting diodes (LEDs) with a subwavelength aluminum-nitride coating will have an enhanced light extraction efficiency. The use of such a LED structure will reduce both the internal reflection and the impedance mismatch, leading to a 3.2-fold enhancement in the light extraction efficiency compared to that for bare planar LEDs. We also present an improved method of modeling the light emission from the LED’s active layers to numerically calculate the light extraction efficiency of LEDs.
| Original language | English |
|---|---|
| Pages (from-to) | 462-466 |
| Number of pages | 5 |
| Journal | Journal of the Korean Physical Society |
| Volume | 68 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2016 Feb 1 |
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Keywords
- Anti-reflection coatings
- Light-emitting diodes
- Total internal reflection
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Light extraction efficiency enhancement using surface-structured light-emitting diodes with a subwavelength coating. / Seok, Myung Su; Yoo, SeokJae J.; Choe, Jong Ho; Park, Q Han; Moon, Yong Tae.
In: Journal of the Korean Physical Society, Vol. 68, No. 3, 01.02.2016, p. 462-466.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Light extraction efficiency enhancement using surface-structured light-emitting diodes with a subwavelength coating
AU - Seok, Myung Su
AU - Yoo, SeokJae J.
AU - Choe, Jong Ho
AU - Park, Q Han
AU - Moon, Yong Tae
PY - 2016/2/1
Y1 - 2016/2/1
N2 - The results of our analysis, which was done by using the finite-difference, time-domain (FDTD) methods suggest that surface-structured light-emitting diodes (LEDs) with a subwavelength aluminum-nitride coating will have an enhanced light extraction efficiency. The use of such a LED structure will reduce both the internal reflection and the impedance mismatch, leading to a 3.2-fold enhancement in the light extraction efficiency compared to that for bare planar LEDs. We also present an improved method of modeling the light emission from the LED’s active layers to numerically calculate the light extraction efficiency of LEDs.
AB - The results of our analysis, which was done by using the finite-difference, time-domain (FDTD) methods suggest that surface-structured light-emitting diodes (LEDs) with a subwavelength aluminum-nitride coating will have an enhanced light extraction efficiency. The use of such a LED structure will reduce both the internal reflection and the impedance mismatch, leading to a 3.2-fold enhancement in the light extraction efficiency compared to that for bare planar LEDs. We also present an improved method of modeling the light emission from the LED’s active layers to numerically calculate the light extraction efficiency of LEDs.
KW - Anti-reflection coatings
KW - Light-emitting diodes
KW - Total internal reflection
UR - http://www.scopus.com/inward/record.url?scp=84959122574&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84959122574&partnerID=8YFLogxK
U2 - 10.3938/jkps.68.462
DO - 10.3938/jkps.68.462
M3 - Article
AN - SCOPUS:84959122574
VL - 68
SP - 462
EP - 466
JO - Journal of the Korean Physical Society
JF - Journal of the Korean Physical Society
SN - 0374-4884
IS - 3
ER -