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Reaction Intermediates Induced Vapor-Liquid-Solid Growth of Silicon Oxide Nanowires


Vapor-liquid-solid (VLS) process is the most popular vapor-phase method for the controlled growth of various one-dimensional (1D) nanostructures with the assistance of catalyst particles. In a typical VLS process, precursors for the desired deposition are introduced intentionally during the growth and catalysts are employed to promote the formation of 1D nanostructures. However, in this study, we report a new VLS growth mode for unexpected 1D nanostructure growth without directly introducing corresponding source materials. In the nanostructure growth of a compound semiconductor, ZnTe, besides the expected ZnTe nanowire arrays, unexpected growth of “jellyfish-like” SiOx nanowires has been observed. The study of growth mechanism reveals that the reaction intermediates from the ZnTe growth, Te-based vapor species, induced the growth by producing Si vapor, while Au catalysts promoted the growth of the nanostructures. Detailed growth processes in this new VLS mode have been analyzed. This study will promote the attentions in composition and phase controls for the growth of compound semiconductor nanostructures. The new growth mode can be extended to realize convenient growth of other nanomaterials with lower temperature and low cost.

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Publication details

The article was received on 07 Jul 2018, accepted on 02 Oct 2018 and first published on 02 Oct 2018

Article type: Paper
DOI: 10.1039/C8CE01115J
Citation: CrystEngComm, 2018, Accepted Manuscript
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    Reaction Intermediates Induced Vapor-Liquid-Solid Growth of Silicon Oxide Nanowires

    J. Huson, T. Sheng, E. Ogle and H. Zhang, CrystEngComm, 2018, Accepted Manuscript , DOI: 10.1039/C8CE01115J

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