期刊
APPLIED PHYSICS LETTERS
卷 98, 期 13, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3569951
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资金
- Bundesministerium fur Umwelt, Naturschutz und Reaktorsicherheit, Germany [0325157 B]
- Deutsche Forschungsgemeinschaft
We investigated the photoluminescence properties of ZnO nanowires coated with Au, Ag, and Pt nanoparticles deposited by dc sputtering. A strong enhancement of the near-band-edge emission was observed in all metal-coated samples but also if the samples were treated with Ar plasma without any nanoparticle deposition. High-resolution photoluminescence spectroscopy revealed hydrogen-donor-bound-exciton emission in all samples indicating unintentional hydrogen incorporation. A shorter decay time of the near-band-edge emission was observed in all cases. The results indicate that unintentional hydrogen incorporation plays a dominant role when metal deposition is performed by sputtering. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3569951]
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