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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Royal Society of Chemistry

Volume

8

Issue

11

Pages

5835 - 5841

Language

English

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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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