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    Electrochemical behavior of gold colloidal alkyl modified silicon surfaces

    Access Status
    Fulltext not available
    Authors
    Le Saux, G.
    Ciampi, Simone
    Gaus, K.
    Gooding, J.
    Date
    2009
    Type
    Journal Article
    
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    Citation
    Le Saux, G. and Ciampi, S. and Gaus, K. and Gooding, J. 2009. Electrochemical behavior of gold colloidal alkyl modified silicon surfaces. ACS Applied Materials and Interfaces. 1 (11): pp. 2477-2483.
    Source Title
    ACS Applied Materials and Interfaces
    DOI
    10.1021/am900427w
    ISSN
    1944-8244
    School
    Nanochemistry Research Institute
    URI
    http://hdl.handle.net/20.500.11937/37646
    Collection
    • Curtin Research Publications
    Abstract

    Herein, we report on the production of nanoelectrode arrays by attaching colloidal gold on silicon-bound mixed self-assembled monolayers of TFA-protected alkenylthiol (C 11-S-TFA) and undecylenic acid (acid). Effective modification of the surface, tethering of the nanoparticles, and the direct influence of the deprotected alkenylthiol (C 11-SH) /acid ratio on the number of adherent particles were demonstrated using X-ray photoelectron spectroscopy, electrochemistry, and atomic force microscopy. Cyclic voltammetry showed that the enhancement of electron transfer to the silicon surface by the presence of nanoparticles is influenced by the number of tethered nanoparticles. © 2009 American Chemical Society.

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