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Graphene plasmon enhanced photoluminescence in ZnO microwires.

Authors
Type
Published Article
Journal
Nanoscale
2040-3364
Publisher
The Royal Society of Chemistry
Publication Date
Volume
5
Issue
12
Pages
5294–5298
Identifiers
DOI: 10.1039/c3nr01226c
PMID: 23695346
Source
Medline

Abstract

We report the temperature dependent photoluminescence (PL) properties of monolayer graphene-Au-nanoparticle-ZnO (GAZ) microwire hybrid structures. By comparing with the bare ZnO wire without coverage of graphene, a three times enhancement of PL was found in the GAZ hybrid structures. The enhancement is attributed to the coupling between the PL photons from ZnO and the graphene surface plasmons with ~1-2 nm Au as a corrugated surface. Our results may be valuable for designing graphene-ZnO hybrid based optical and photoelectrical devices.

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