Guozhen Shen et al 2006 Nanotechnology 17 3468 doi:10.1088/0957-4484/17/14/019
Synthesis, characterization and field-emission properties of bamboo-like β-SiC nanowires
Guozhen Shen1, Yoshio Bando, Changhui Ye, Baodan Liu and Dmitri Golberg
Show affiliationsSingle-crystalline bamboo-like β-SiC nanowires with hexagonal cross-sections were synthesized by thermal evaporation of mixed SiO+C+GaN powders in an Ar atmosphere. The as-synthesized nanowires were studied by x-ray diffraction, scanning electron microscopy and transmission electron microscopy. Studies found that the as-synthesized SiC nanowires are composed of hexagonal stems decorated with larger diameter knots along their whole length with the 
growth direction. The growth of bamboo-like SiC nanowires is governed by the vapour–liquid–solid mechanism. Field-emission properties of the peculiar nanostructures were also explored, showing a turn-on field of about 10.1 V µm−1.
- PACS
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81.16.Be Chemical synthesis methods
61.46.-w Structure of nanoscale materials
79.70.+q Field emission, ionization, evaporation, and desorption
- Subjects
- Dates
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Issue 14 (28 July 2006)
Received 15 March 2006, in final form 22 May 2006
Published 20 June 2006
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Synthesis, characterization and field-emission properties of bamboo-like β-SiC nanowires
Guozhen Shen et al 2006 Nanotechnology 17 3468
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Grain Size Effect on Electrical Conductivity and Giant Magnetoresistance of Bulk Magnetic Polycrystals
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