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Photoluminescence Property of Co3O4 Nanowires |
XUE De-Sheng1;GONG Yu1;LIU Wen-Jing2;SI Ming-Su1;LIU Zai-Wen1 |
1Key Laboratory for Magnetism and Magnetic Materials (Ministry of Education), Lanzhou University, Lanzhou 7300002Department of Material Science, Lanzhou University, Lanzhou 730000 |
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Cite this article: |
XUE De-Sheng, GONG Yu, LIU Wen-Jing et al 2007 Chin. Phys. Lett. 24 1756-1758 |
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Abstract Co3O4 nanowire arrays are fabricated by electrodeposition with following heat-treatment in atmosphere ambient. Photoluminescence is investigated at 295K. In the experiment, when increasing the excitation light wavelength from 260nm to 360nm, two kinds of emissions corresponding to the increasing excitation light wavelength are observed. One of them alters the excited emission position, another keeps its emission position. The distinct behaviour of excited emissions related to the increasing excitation wavelength indicates that the mechanism of them must be different. According to the experimental comparison and first-principle calculation, the two kinds of emissions are discussed.
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Keywords:
81.16.Be
81.07.-b
78.55.-m
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Received: 26 January 2007
Published: 17 May 2007
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PACS: |
81.16.Be
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(Chemical synthesis methods)
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81.07.-b
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(Nanoscale materials and structures: fabrication and characterization)
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78.55.-m
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(Photoluminescence, properties and materials)
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