Asymmetric silicon nitride nanodendrites

    Authors

    W. Y. Yang; F. M. Gao; H. T. Wang; Z. P. Xie;L. A. An

    Comments

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    Abbreviated Journal Title

    Cryst. Growth Des.

    Keywords

    OPTICAL-PROPERTIES; NANOBELTS; NANOWIRES; THIN; PHOTOLUMINESCENCE; MICROSTRUCTURE; ORGANIZATION; MORPHOLOGY; CONVERSION; NANORINGS; Chemistry, Multidisciplinary; Crystallography; Materials Science, ; Multidisciplinary

    Abstract

    We have demonstrated the growth of asymmetric ordered Si3N4 nanodendrites via the catalyst-assisted pyrolysis of a polymeric precursor. The growth of the unique structure is due to the usage of a co-catalyst composed of a Fe-Al mixture. First, Si3N4 stems grow at an early stage via a gas-solid process with Al being the catalyst. Fe is then selectively deposited on the negatively charged (010) surface of the Si3N4 stem to form catalytic droplets which promote the growth of the ordered nanowire branches. The novel nanostructures could be useful for the fabrication of nanodevices and nanocomposites. The principle demonstrated here is applicable for synthesizing ordered branched nanodendrites in other material systems.

    Journal Title

    Crystal Growth & Design

    Volume

    8

    Issue/Number

    8

    Publication Date

    1-1-2008

    Document Type

    Article

    Language

    English

    First Page

    2606

    Last Page

    2608

    WOS Identifier

    WOS:000258270900005

    ISSN

    1528-7483

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