Single Nanoskived Nanowires for Electrochemical Applications
MetadataShow full item record
In this work, we fabricate gold nanowires with well controlled critical dimensions using a recently demonstrated facile approach termed nanoskiving. Nanowires are fabricated with lengths of several hundreds of micrometers and are easily electrically contacted using overlay electrodes. Following fabrication, nanowire device performance is assessed using both electrical and electrochemicalcharacterization techniques. We observe low electrical resistances with typical linear Ohmic responses from fully packaged nanowire devices. Steady-state cyclic voltammograms in ferrocenemonocarboxylicacid demonstrate scan rate independence up to 1000 mV s1. Electrochemical responses are excellently described by classical ButlerVolmer kinetics, displaying a fast, heterogeneous electron transfer kinetics, k0 = 2.27 ( 0.02 cm s1, R = 0.4 (0.01. Direct reduction of hydrogen peroxide is observed at nanowires across the 110 pMto 1 mM concentration range, without the need for chemical modification, demonstrating the potential of these devices for electrochemical applications.
Showing items related by title, author, creator and subject.
Geometry and diameter dependence of the electronic and physical properties of GaN nanowires from first principlesCarter, Damien; Gale, Julian; Delley, B.; Stampfl, C. (2008)We present a comprehensive first-principles investigation of the atomic and electronic structures of gallium nitride nanowires, and examine the dependence on nanowire diameter and shape. We consider nanowires in the 0001 ...
Wan, L.; Li, Xin Yong; Qu, Z.; Shi, Y.; Li, H.; Zhao, Q.; Chen, G. (2010)ZnO/Zn2TiO4 core/shell nanowires were synthesized for the first time based on a solid-solid reaction of ZnO nanowires with a conformal shell of TiO2, which was deposited by a sol-gel method. The as-prepared samples were ...
Strengthening brittle semiconductor nanowires through stacking faults: insights from in-situ mechanical testingChen, B.; Wang, J.; Gao, Q.; Chen, Y.; Liao, X.; Lu, Chunsheng; Tan, H.; Mai, Y.; Zou, J.; Ringer, S.; Gao, H.; Jagadish, C. (2013)Quantitative mechanical testing of single-crystal GaAs nanowires was conducted using in situ deformation transmission electron microscopy. Both zinc-blende and wurtzite structured GaAs nanowires showed essentially elastic ...