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Fabrication and Photoluminescence Properties of Graphite Fiber/ZnO Nanorod Core–Shell Structures

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Abstract:

Graphite fiber/ZnO nanorod core–shell structures were synthesized by thermal evaporation process. The core–shell hybrid architectures were comprised of ZnO nanorods grown on the surface of graphite fiber. In addition, Hollow ZnO hierarchical structure can be obtained by oxidizing the graphite fiber. Room temperature photoluminescence (PL) of the as-made graphite fiber/ZnO nanorod structures shows two UV peaks at around 3.274 eV and 3.181 eV. The temperature-dependent photoluminescence spectra demonstrate the two UV emissions are attributed to the intrinsic optical transitions and extrinsic defect-related emissions in ZnO. These hybrid structures may be used as the building block for fabrication of nanodevices.

Keywords: CORE-SHELL STRUCTURES; GRAPHITE FIBER; HOLLOW HIERARCHICAL STRUCTURE; PHOTOLUMINESCENCE; ZNO NANOROD

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2011.4233

Publication date: August 1, 2011

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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