title: Lithographically fabricated nanopore-based electrodes for electrochemistry.
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.
authors.affiliation: Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands. lemay@mb.tn.tudelft.nl
authors.forename: Serge G
authors.initials: SG
authors.lastname: Lemay
authors.forename: Dennis M
authors.initials: DM
authors.lastname: van den Broek
authors.forename: Arnold J
authors.initials: AJ
authors.lastname: Storm
authors.forename: Diego
authors.initials: D
authors.lastname: Krapf
authors.forename: Ralph M M
authors.initials: RM
authors.lastname: Smeets
authors.forename: Hendrik A
authors.initials: HA
authors.lastname: Heering
authors.forename: Cees
authors.initials: C
authors.lastname: Dekker