Low-cost, large-scale, ordered ZnO nanopillar arrays for light extraction efficiency enhancement in quantum dot light-emitting diodes
Date
2014
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Source Title
Proceedings of the Photonics Conference, IEEE 2014
Print ISSN
1092-8081
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Publisher
IEEE
Volume
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Pages
534 - 535
Language
English
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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.
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Keywords
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 , Quantum-dot light emitting diodes , Quantum efficiency