Enhancement of light extraction in GaN-based light-emitting diodes by Al2O3-coated ZnO nanorod arrays
Publication type: Journal Article
Publication date: 2014-10-01
scimago Q1
wos Q1
SJR: 1.192
CiteScore: 11.8
Impact factor: 6.3
ISSN: 09258388, 18734669
Materials Chemistry
Metals and Alloys
Mechanical Engineering
Mechanics of Materials
Abstract
We report on the improvement of light extraction efficiency in blue light-emitting diodes (LEDs) by the use of Al 2 O 3 /ZnO core/shell nanorods (NRs) grown on the surface of the LED epi-structure. The electroluminescence intensity at a current injection of 20 mA of LEDs with 40 nm-thick Al 2 O 3 -coated ZnO NR arrays is 2.1 and 4.0 times than those of LEDs with bare ZnO NRs and no NRs, respectively. The enhanced light extraction of LEDs with Al 2 O 3 -coated ZnO NRs can be attributed to an increase in transmission and improved light extraction probability for photons generated in blue LEDs due to a reduction of Fresnel reflection loss.
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Park J., Shin D. S., Kim D. H. Enhancement of light extraction in GaN-based light-emitting diodes by Al2O3-coated ZnO nanorod arrays // Journal of Alloys and Compounds. 2014. Vol. 611. pp. 157-160.
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Park J., Shin D. S., Kim D. H. Enhancement of light extraction in GaN-based light-emitting diodes by Al2O3-coated ZnO nanorod arrays // Journal of Alloys and Compounds. 2014. Vol. 611. pp. 157-160.
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TY - JOUR
DO - 10.1016/j.jallcom.2014.05.019
UR - https://doi.org/10.1016/j.jallcom.2014.05.019
TI - Enhancement of light extraction in GaN-based light-emitting diodes by Al2O3-coated ZnO nanorod arrays
T2 - Journal of Alloys and Compounds
AU - Park, Jinsub
AU - Shin, Dong Su
AU - Kim, Do Hyun
PY - 2014
DA - 2014/10/01
PB - Elsevier
SP - 157-160
VL - 611
SN - 0925-8388
SN - 1873-4669
ER -
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BibTex (up to 50 authors)
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@article{2014_Park,
author = {Jinsub Park and Dong Su Shin and Do Hyun Kim},
title = {Enhancement of light extraction in GaN-based light-emitting diodes by Al2O3-coated ZnO nanorod arrays},
journal = {Journal of Alloys and Compounds},
year = {2014},
volume = {611},
publisher = {Elsevier},
month = {oct},
url = {https://doi.org/10.1016/j.jallcom.2014.05.019},
pages = {157--160},
doi = {10.1016/j.jallcom.2014.05.019}
}