| Abstract
| - A reversible electrochemical behavior is demonstrated on a specially prepared redox-functionalized H−Si(100)surface, obtained via an extra-mild grafting procedure from vinylferrocene. The results of a detailed XPS andelectrochemical characterization of the resulting hybrid are reported and discussed to propose it as a referencesystem for high-quality electroactive monolayers on Si. The investigated ferrocene derivative bears a functionalgroup suitable for a mild route to covalent anchoring on Si, which is based on a photoinduced reaction withvisible light under an inert atmosphere. Electrochemical reversibility is shown by sharp symmetricvoltammograms on freshly prepared p-Si electrodes. Anodic oxide growth is responsible for the progressivedegradation of the electrochemical response. Still, fast electron transfer to the surface redox species is maintainedduring several thousands cycles.
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