Synthesis and Raman scattering of GaN nanorings, nanoribbons and nanowires |
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Authors: | ZJ Li XL Chen HJ Li QY Tu Z Yang YP Xu BQ Hu |
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Institution: | (1) Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080, P.R. China, CN;(2) College of Materials Science and Engineering, Northwestern Polytechnical University, Xian 710072, P.R. China, CN |
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Abstract: | Low-dimensional GaN materials, including nanorings, nanoribbons and smooth nanowires have been synthesized by reacting gallium
and ammonia using Ag particles as a catalyst on the substrate of MgO single crystals. They were characterized by field emission
scanning electron microscopy (FE-SEM), energy dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD). EDX, XRD indicated
that the low-dimensional nanomaterials were wurtzite GaN. New features are found in Raman scatterings for these low-dimensional
GaN materials, which are different from the previous observations of GaN materials.
Received: 16 November 2000 / Accepted: 17 November 2000 / Published online: 21 March 2001 |
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Keywords: | PACS: 81 05 Ea 42 65 Dr |
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