Exciton energy recycling from ZnO defect levels: towards electrically driven hybrid quantum-dot white light-emitting-diodes

Date
2016
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Source Title
Nanoscale
Print ISSN
2040-3364
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Publisher
Royal Society of Chemistry
Volume
8
Issue
11
Pages
5835 - 5841
Language
English
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Article
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Abstract

An electrically driven quantum-dot hybrid white light-emitting diode is fabricated via spin coating CdSe quantum dots onto a GaN/ZnO nanorod matrix. For the first time, quantum dots are excited by fluorescence resonance energy transfer from the carriers trapped at surface defect levels. The prototype device exhibits achromatic emission, with a chromaticity coordinate of (0.327, 0.330), and correlated color temperature similar to sunlight. © 2016 The Royal Society of Chemistry.

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Published Version (Please cite this version)