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Plasma-assisted self-catalytic vapour-liquid-solid growth of β-SiC nanowires

Zhang, Jian, Wang, Qiushi, Wang, Feng, Chen, Xiaohui, Lei, Weiwei, Cui, Qiliang and Zou, Guangtian 2009, Plasma-assisted self-catalytic vapour-liquid-solid growth of β-SiC nanowires, Journal of physics D : applied physics, vol. 42, no. 3, pp. 035108-035108, doi: 10.1088/0022-3727/42/3/035108.

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Title Plasma-assisted self-catalytic vapour-liquid-solid growth of β-SiC nanowires
Author(s) Zhang, Jian
Wang, Qiushi
Wang, Feng
Chen, Xiaohui
Lei, WeiweiORCID iD for Lei, Weiwei orcid.org/0000-0003-2698-299X
Cui, Qiliang
Zou, Guangtian
Journal name Journal of physics D : applied physics
Volume number 42
Issue number 3
Start page 035108
End page 035108
Total pages 1
Publisher Institute of Physics Publishing
Place of publication Bristol, England
Publication date 2009
ISSN 0022-3727
1361-6463
Keyword(s) condensed matter
electrical
magnetic
optical
semiconductors
condensed matter
structural
mechanical
thermal
nanoscale science and low-D systems
Summary Long and straight β-SiC nanowires are synthesized via the direct current arc discharge method with a mixture of silicon, graphite and silicon dioxide as the precursor. Detailed investigations with x-ray diffraction, scanning electron microscopy, energy dispersive x-ray spectroscopy, Raman scattering spectroscopy, transmission electron microscopy and selected area electron diffraction confirm that the β-SiC nanowires, which are about 100–200 nm in stem diameter and 10–20 µm in length, consist of a solid single-crystalline core along the (1 1 1) direction wrapped with an amorphous SiOx layer. A broad photoluminescence emission peak with a maximum at about 336 nm is observed at room temperature. A direct current arc plasma-assisted self-catalytic vapour–liquid–solid process is proposed as the growth mechanism of the β-SiC nanowires. This synthesis technique is capable of producing SiC nanowires free of metal contamination with a preferential growth direction and a high aspect ratio, without the designed addition of transition metals as catalysts.
Language eng
DOI 10.1088/0022-3727/42/3/035108
Field of Research 091205 Functional Materials
020504 Photonics, Optoelectronics and Optical Communications
100708 Nanomaterials
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2009, Institute of Physics Publishing
Persistent URL http://hdl.handle.net/10536/DRO/DU:30047842

Document type: Journal Article
Collection: Institute for Frontier Materials
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