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Fabrication, characterization, and chemical etching of Ag nanoelectrodes
Authors:Jean-Marc Noël  Jeyavel Velmurugan  Ebru Gökme?e  Michael V Mirkin
Institution:1. Department of Chemistry and Biochemistry, Queens College–CUNY, Flushing, NY, 11367, USA
2. Department of Chemistry, Hitit University, Corum, Turkey
Abstract:The previously developed methodologies for fabricating flat, polished nanoelectrodes were extended to produce silver electrodes with the radii from 50 nm to micrometers. The prepared electrodes were characterized by steady-state voltammetry, scanning electrochemical microscopy (SECM), and atomic force microscopy. The protocol was developed for controlled chemical etching of silver in ammonia solutions to produce recessed nanoelectrodes. Voltammograms and SECM approach curves were obtained to evaluate the recess depth and other geometric parameters of the etched electrodes.
Keywords:
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