title: Electrochemical stability of self-assembled alkylphosphate monolayers on conducting metal oxides.
abstract: Alkylphosphate self-assembled monolayers (SAMs) were prepared on Nb-doped SrTiO(3) (Nb-STO) conducting metal oxide substrates. Unlike thiols on gold, the alkylphosphate SAMs on Nb-STO exhibited an electrochemical stability over a wide voltage range from -2 to 2 V. Cyclic voltammetry showed that the SAM modification inhibited the electrochemical activity of the underlying conducting substrate with an efficiency dependent on the chain length. Impedance spectroscopy showed that SAM-modified Nb-STO substrates have a significantly higher resistance than bare substrates.
authors: Inorganic Materials Science, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands.
authors: Oktay
authors: O
authors: Yildirim
authors: M Deniz
authors: MD
authors: Yilmaz
authors: David N
authors: DN
authors: Reinhoudt
authors: Dave H A
authors: DH
authors: Blank
authors: Guus
authors: G
authors: Rijnders
authors: Jurriaan
authors: J
authors: Huskens