Web Release Date: February 8,
Conducting Ferrocene Monolayers on Nonconducting Surfaces
Sciences Chimiques de Rennes, UMR CNRS 6226, Université de Rennes 1, Equipe MACSE, Campus de Beaulieu, 35042 Rennes Cedex, France
Received December 16, 2007
Abstract:
The redox activity of a ferrocenyl monolayer grafted on an n-type Si(111) substrate was investigated by scanning electrochemical microscopy (SECM) in conditions where the substrate plays the role of an insulator. This approach permits the differentiation between the different possible electron-transfer and mass-transport pathways occurring at the interface. As an exciting result, the thin ferrocenyl monolayer behaves like a purely conducting material, highlighting very fast electron communication between immobilized ferrocenyl headgroups in a 2D-like charge-transport mechanism.
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