Issue 11, 2011
From the journal:

CrystEngComm

Enhancement of near-band edge emission of Au/ZnO composite nanobelts by surface plasmon resonance

B. J. Niu,a   L. L. Wu,a   W. Tang,a   X. T. Zhang*a  and  Q. G. Meng*a  

* Corresponding authors

a Heilongjiang Key Laboratory for Low-Dimensional System and Mesoscopic Physics, School of Physics and Electronic Engineering, Harbin Normal University, Harbin, P. R. China
E-mail: xtzhangzhang@hotmail.com, mqg1010@163.com

Abstract

In this paper, ZnO nanobelts were synthesized by chemical vapor deposition. And then Au nanoparticles were sputtered on the ZnO nanobelts. Enhancement of the near-band edge emission of Au/ZnO composite nanobelts was observed from photoluminescence measurement due to the coupling between the defect emission from ZnO and surface plasmons of Au nanoparticles, compared to bare ZnO nanobelts. The coupled energy could be transferred into free space photons when the interface is sufficiently rough to scatter the surface plasmons. The enhancement ratio of the near-band edge emission of Au/ZnO is 11-fold higher than that of bare ZnO. The enhancement mechanism was proposed based on scattering and absorption by Au nanoparticles.

Graphical abstract: Enhancement of near-band edge emission of Au/ZnO composite nanobelts by surface plasmon resonance

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Article information

DOI
https://doi.org/10.1039/C1CE05175J
Article type
Communication
Submitted
06 Feb 2011
Accepted
04 Apr 2011
First published
21 Apr 2011

CrystEngComm, 2011,13, 3678-3681

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Enhancement of near-band edge emission of Au/ZnO composite nanobelts by surface plasmon resonance

B. J. Niu, L. L. Wu, W. Tang, X. T. Zhang and Q. G. Meng, CrystEngComm, 2011, 13, 3678 DOI: 10.1039/C1CE05175J

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