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Structural and Photoluminescence Properties of β-Ga2O3 Nanofibres Fabricated by Electrospinning Method |
| ZHAO Jian-Guo, ZHANG Zhen-Xing, MA Zi-Wei, DUAN Hui-Gao, GUO Xiao-Song, XIE Er-Qing |
| Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000 |
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| Cite this article: |
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ZHAO Jian-Guo, ZHANG Zhen-Xing, MA Zi-Wei et al 2008 Chin. Phys. Lett. 25 3787-3789 |
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Abstract We have prepared the β-Ga2O3 nanofibres by electrospinning method followed by calcining in air at 900°C. The morphology and structure of the nanofibres are characterized by field emission scanning electron microscopy (FE-SEM), x-ray diffraction (XRD) and Raman technique. These nanofibres have diameters ranging from 60 to 130nm and lengths up to several millimetres. Photoluminescence (PL) spectrum under excitation at 325nm shows that these β-Ga2O3 nanofibres have a blue emission peaking at 466nm, which may be attributed to defects such as the oxygen vacancies, gallium vacancies and gallium-oxygen vacancy pairs.
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| Keywords:
78.55.-m
61.72.-y
62.23.-c
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Received: 10 July 2008
Published: 26 September 2008
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| PACS: |
78.55.-m
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(Photoluminescence, properties and materials)
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61.72.-y
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(Defects and impurities in crystals; microstructure)
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62.23.-c
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(Structural classes of nanoscale systems)
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