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Issue 11, 2011
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Enhancement of near-band edge emission of Au/ZnO composite nanobelts by surface plasmon resonance

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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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Publication details

The article was received on 06 Feb 2011, accepted on 04 Apr 2011 and first published on 21 Apr 2011


Article type: Communication
DOI: 10.1039/C1CE05175J
Citation: 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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