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Large-scale Synthesis of β -SiC Nanochains and Their Raman/Photoluminescence Properties

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ABSTRACT

Although the SiC/SiO2 nanochain heterojunction has been synthesized, the chained homogeneous nanostructure of SiC has not been reported before. Herein, the novel β-SiC nanochains are synthesized assisted by the AAO template. The characterized results demonstrate that the nanostructures are constructed by spheres of 25–30 nm and conjoint wires of 15–20 nm in diameters. Raman and photoluminescence measurements are used to explore the unique optical properties. A speed-alternating vapor–solid (SA-VS) growth mechanism is proposed to interpret the formation of this typical nanochains. The achieved nanochains enrich the species of one-dimensional (1D) nanostructures and may hold great potential applications in nanotechnology.

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Representative XRD pattern of the products grown on the AAO template indicating the crystalline β-SiC.
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Figure 1: Representative XRD pattern of the products grown on the AAO template indicating the crystalline β-SiC.

Mentions: The representative XRD pattern of the products grown on AAO template is also observed in Figure 1, suggesting that β-SiC is the only crystalline phase. The major diffraction peaks could be assigned to the (111), (200), (220), and (311). These values are in well agreement with the known values for β-SiC (JCPDS Card. No.29-1129). The low-density peak is due to the crystal stacking faults [28]. Moreover; the amorphous background in the pattern is caused by the AAO template.


Large-scale Synthesis of β -SiC Nanochains and Their Raman/Photoluminescence Properties
Representative XRD pattern of the products grown on the AAO template indicating the crystalline β-SiC.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3211428&req=5

Figure 1: Representative XRD pattern of the products grown on the AAO template indicating the crystalline β-SiC.
Mentions: The representative XRD pattern of the products grown on AAO template is also observed in Figure 1, suggesting that β-SiC is the only crystalline phase. The major diffraction peaks could be assigned to the (111), (200), (220), and (311). These values are in well agreement with the known values for β-SiC (JCPDS Card. No.29-1129). The low-density peak is due to the crystal stacking faults [28]. Moreover; the amorphous background in the pattern is caused by the AAO template.

View Article: PubMed Central - HTML - PubMed

ABSTRACT

Although the SiC/SiO2 nanochain heterojunction has been synthesized, the chained homogeneous nanostructure of SiC has not been reported before. Herein, the novel β-SiC nanochains are synthesized assisted by the AAO template. The characterized results demonstrate that the nanostructures are constructed by spheres of 25–30 nm and conjoint wires of 15–20 nm in diameters. Raman and photoluminescence measurements are used to explore the unique optical properties. A speed-alternating vapor–solid (SA-VS) growth mechanism is proposed to interpret the formation of this typical nanochains. The achieved nanochains enrich the species of one-dimensional (1D) nanostructures and may hold great potential applications in nanotechnology.

No MeSH data available.