Rapid Solid-State Synthesis of Nanostructured Silicon

    Authors

    S. K. Bux; M. Rodriquez; M. T. Yeung; C. Yang; A. Makhluf; R. G. Blair; J. P. Fleurial;R. B. Kaner

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    Abbreviated Journal Title

    Chem. Mat.

    Keywords

    METATHESIS REACTIONS; NANOWIRE GROWTH; SURFACE-AREA; PERFORMANCE; DISULFIDE; CARBIDES; ROUTES; OXYGEN; Chemistry, Physical; Materials Science, Multidisciplinary

    Abstract

    Nanostructured silicon has recently been identified as an attractive material for a wide variety of uses from energy conversion and storage to biological applications Here we present a new, rapid method of producing high-purity, nanostructured, unfunctionalized silicon via solid-state metathesis (SSM) in a matter of seconds The silicon forms in a double displacement reaction between silicon tetraiodide and an alkaline earth suicide precursor. The products are characterized using powder X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy-dispersive spectroscopy (EDS). Depending on the suicide precursor used, two different morphologies are obtained, either nanoparticles or dendritic nanowires. The variations in the morphologies are attributed to differences in the kinetics of the reactions

    Journal Title

    Chemistry of Materials

    Volume

    22

    Issue/Number

    8

    Publication Date

    1-1-2010

    Document Type

    Article

    Language

    English

    First Page

    2534

    Last Page

    2540

    WOS Identifier

    WOS:000276817200017

    ISSN

    0897-4756

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