Low-cost, large-scale, ordered ZnO nanopillar arrays for light extraction efficiency enhancement in quantum dot light-emitting diodes

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Author
Yang X.
Dev, K.
Wang J.
Mutlugun, E.
Dang, C.
Zhao, Y.
Tan, S.T.
Sun X.W.
Demir, H. V.
Date
2014
Source Title
2014 IEEE Photonics Conference, IPC 2014
Publisher
Institute of Electrical and Electronics Engineers Inc.
Pages
534 - 535
Language
English
Type
Conference Paper
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Abstract
We report a QLED with enhanced light outcoupling efficiency by applying a layer of periodic ZnO nanopillar arrays. The resulting QLED reaches the record external quantum efficiency (EQE) of 9.34% in green-emitting QLEDs with a similar device structure. © 2014 IEEE.
Keywords
light-emitting diodes
nanopillar
QLED
quantum dots
ZnO
Efficiency
Light emitting diodes
Nanocrystals
Nanostructures
Photonics
Semiconductor quantum dots
Zinc oxide
External quantum efficiency
Light outcoupling
Light-extraction efficiency
Nano-pillar arrays
NanoPillar
QLED
Quantum-dot light emitting diodes
ZnO
Quantum efficiency
Permalink
http://hdl.handle.net/11693/27030
Published Version (Please cite this version)
http://dx.doi.org/10.1109/IPCon.2014.6995486
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