Alkanethiol-Oxidised Copper Interface: The Critical Influence of Concentration

Gregory Fonder, Fabrice Laffineur, Joseph Delhalle, Zineb Mekhalif

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    Résumé

    In this contribution, self-assembled monolayers of n-dodecanethiol (C12H25SH) at different concentrations on polycrystalline copper have been elaborated. Using XPS, PM-IRRAS, and electrochemical methods (cyclic voltammetry curves and cathodic desorption), the effect of the C12H25SH concentration on the reduction of the oxide layer has been studied. In all cases, a monolayer of good quality has been obtained. Results provide proof that while the concentration is increased, the thickness of the oxide layer is decreased, to a point that leads to metallic copper for the higher concentration. The results presented in this publication indicate the importance of controlling the interface when forming SAMs of organothiols on oxidizable metals.
    langue originaleAnglais
    Pages (de - à)333-338
    Nombre de pages6
    journalJournal of colloid and interface science
    Volume326
    Numéro de publication2
    Les DOIs
    Etat de la publicationPublié - 2008

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