期刊
APPLIED PHYSICS LETTERS
卷 98, 期 3, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3543902
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资金
- National Natural Science Foundation of China [10874148, 60976012]
- Zhejiang Provincial Natural Science Foundation of China [Y4090251]
- Qianjiang Talent Project of Zhejiang Province [J20091163]
- Fundamental Research Funds for the Central Universities [2010QNA3023]
- Special Program for the Science and Technology Plan of Zhejiang Province [2009C14005]
- Science and Technology Innovative Research Team of Zhejiang Province [2009R50010]
- National Basic Research Program of China [2007CB613403]
The effect of metal coating on the photoluminescence (PL) properties of ZnO nanowire arrays has been investigated in detail in this letter. The Zn coating induces remarkable enhancement of the ultraviolet and green emissions of the nanowires, while the deposition of Ag leads to notable decrement of them. A model considering the type of contacts formed between metals and ZnO is proposed to interpret the change of the PL spectra. Also, this model is strongly supported by the PL variation of the nanowires after coating with other kinds of metals. (c) 2011 American Institute of Physics. [doi:10.1063/1.3543902]
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