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Proceedings Paper

ZnO nanowires for tunable near-UV/blue LED
Author(s): Thierry Pauporté; Oleg Lupan; Bruno Viana
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Paper Abstract

Nanowires (NWs)-based light emitting diodes (LEDs) have drawn large interest due to many advantages compared to thin film based devices. Markedly improved performances are expected from nanostructured active layers for light emission. Nanowires can act as direct waveguides and favor light extraction without the use of lenses and reflectors. Moreover, the use of wires avoids the presence of grain boundaries and then the emission efficiency should be boosted by the absence of non-radiative recombinations at the joint defects. Electrochemical deposition technique was used for the preparation of ZnO-NWs based light emitters. Nanowires of high structural and optical quality have been epitaxially grown on p-GaN single crystalline films substrates. We have shown that the emission is directional with a wavelength that was tuned and red-shifted toward the visible region by doping with Cu in ZnO NWs.

Paper Details

Date Published: 29 February 2012
PDF: 6 pages
Proc. SPIE 8263, Oxide-based Materials and Devices III, 82630O (29 February 2012); doi: 10.1117/12.909869
Show Author Affiliations
Thierry Pauporté, LECIME, CNRS, Ecole Nationale Supérieure de Chimie de Paris (France)
Oleg Lupan, LECIME, CNRS, Ecole Nationale Supérieure de Chimie de Paris (France)
Bruno Viana, LCMCP, CNRS, Ecole Nationale Supérieure de Chimie de Paris (France)

Published in SPIE Proceedings Vol. 8263:
Oxide-based Materials and Devices III
Ferechteh H. Teherani; David C. Look; David J. Rogers, Editor(s)

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