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Issue 12, 1999
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SiC–SiOx heterojunctions in nanowires

Abstract

Novel 2-D nanoscale SiC networks have been generated by heating SiC–Fe–Co mixtures under a CO atmosphere. Examination of the products by EDX and HRTEM showed that most of the nanowires consist of β-SiC elongated single crystals, wrapped in amorphous SiOx sheaths. Intriguing crystalline features and defects associated with SiC nanowires were observed. We believe that a binary Fe–Co catalyst is responsible for the SiC network: Fe catalyses the formation of the SiC inner cores and Co the SiOx (x = 1–2) outer shell. A two-step growth mechanism, involving a vapour–liquid–solid (V–L–S) step, is thought to account for SiC nanowire creation.

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Article type: Paper
DOI: 10.1039/A905547I
J. Mater. Chem., 1999,9, 3173-3178

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    SiC–SiOx heterojunctions in nanowires

    Y. Qiu Zhu, W. Bing Hu, W. Kuang Hsu, M. Terrones, N. Grobert, J. P. Hare, H. W. Kroto, D. R. M. Walton and H. Terrones, J. Mater. Chem., 1999, 9, 3173
    DOI: 10.1039/A905547I

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