Lithographically fabricated nanopore-based electrodes for electrochemistry


Lemay, Serge G. and Broek, Dennis M. van den and Storm, Arnold J. and Krapf, Diego and Smeets, Ralph M.M. and Heering, Hendrik A. and Dekker, Cees (2005) Lithographically fabricated nanopore-based electrodes for electrochemistry. Analytical Chemistry, 77 (6). pp. 1911-1915. ISSN 0003-2700

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Abstract:We report a new technique for fabricating electrodes for electrochemical applications with lateral dimensions in the range 15−200 nm and a reproducible, well-defined geometry. This technique allows determining the electrode size by electron microscopy prior to electrochemical measurements and without contamination of the metal electrode. We measured the diffusion-limited current with stepped-current voltammetry and showed that its dependence on electrode size can be quantitatively understood if the known geometry of the electrodes is explicitly taken into account.
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Copyright:© 2005 American Chemical Society
Science and Technology (TNW)
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