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Fabrication and characterization of a molecular adhesive layer for micro- and nanofabricated electrochemical electrodes

Beck, Marc LU ; Bunk, Richard LU ; Forzen, E.; Tegenfeldt, Jonas LU ; Ling, T.G.I. and Montelius, Lars LU (2002) Proceedings of 7th International Conference on Nanometer-Scale Science and Technology and 21st European Conference on Surface Science (NANO-7/ECOSS-21) In 7th International Conference on Nanometer-Scale Science and Technology and 21st European Conference on Surface Science
Abstract
When making nanoelectrodes for applications in liquid cells it is plausible that the less noble metal layer may be negatively affected, i.e. it will be etched away leading to very unstable conditions during operation. Here we describe a dry method to produce such a molecular layer consisting of mercaptopropyltriethoxysilane (MPTS) making it possible to controllable and reproducibly form a covalently bound monolayer of MPTS to the SiO<sub>2</sub> surface. From Photoelectron Spectroscopy measurements we could conclude that the layer thickness corresponds to a monolayer. We have electrochemically characterized such electrodes by cyclic voltammetry. Furthermore, we have successfully patterned such layers at both micro- and... (More)
When making nanoelectrodes for applications in liquid cells it is plausible that the less noble metal layer may be negatively affected, i.e. it will be etched away leading to very unstable conditions during operation. Here we describe a dry method to produce such a molecular layer consisting of mercaptopropyltriethoxysilane (MPTS) making it possible to controllable and reproducibly form a covalently bound monolayer of MPTS to the SiO<sub>2</sub> surface. From Photoelectron Spectroscopy measurements we could conclude that the layer thickness corresponds to a monolayer. We have electrochemically characterized such electrodes by cyclic voltammetry. Furthermore, we have successfully patterned such layers at both micro- and nanometer scale showing the possibilities to fabricate chemically selective and active areas that may be used in various applications (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
SiO<sub>2</sub> surface, covalently bound monolayer, mercaptopropyltriethoxysilane, molecular layer, dry method, etching, noble metal layer, liquid cells, nanoelectrodes, microfabricated electrochemical electrodes, molecular adhesive layer, nanofabricated electrochemical electrodes, Au, SiO<sub>2</sub>, chemically selective fabrication, photoelectron spectroscopy, electrochemical characterization, cyclic voltammetry
in
7th International Conference on Nanometer-Scale Science and Technology and 21st European Conference on Surface Science
pages
2 pages
publisher
Lund University
conference name
Proceedings of 7th International Conference on Nanometer-Scale Science and Technology and 21st European Conference on Surface Science (NANO-7/ECOSS-21)
language
English
LU publication?
yes
id
a8202055-3fc4-4e90-967e-30583128eb05 (old id 610492)
date added to LUP
2007-11-27 09:33:13
date last changed
2016-04-16 08:18:10
@inproceedings{a8202055-3fc4-4e90-967e-30583128eb05,
  abstract     = {When making nanoelectrodes for applications in liquid cells it is plausible that the less noble metal layer may be negatively affected, i.e. it will be etched away leading to very unstable conditions during operation. Here we describe a dry method to produce such a molecular layer consisting of mercaptopropyltriethoxysilane (MPTS) making it possible to controllable and reproducibly form a covalently bound monolayer of MPTS to the SiO&lt;sub&gt;2&lt;/sub&gt; surface. From Photoelectron Spectroscopy measurements we could conclude that the layer thickness corresponds to a monolayer. We have electrochemically characterized such electrodes by cyclic voltammetry. Furthermore, we have successfully patterned such layers at both micro- and nanometer scale showing the possibilities to fabricate chemically selective and active areas that may be used in various applications},
  author       = {Beck, Marc and Bunk, Richard and Forzen, E. and Tegenfeldt, Jonas and Ling, T.G.I. and Montelius, Lars},
  booktitle    = {7th International Conference on Nanometer-Scale Science and Technology and 21st European Conference on Surface Science},
  keyword      = {SiO<sub>2</sub> surface,covalently bound monolayer,mercaptopropyltriethoxysilane,molecular layer,dry method,etching,noble metal layer,liquid cells,nanoelectrodes,microfabricated electrochemical electrodes,molecular adhesive layer,nanofabricated electrochemical electrodes,Au,SiO<sub>2</sub>,chemically selective fabrication,photoelectron spectroscopy,electrochemical characterization,cyclic voltammetry},
  language     = {eng},
  pages        = {2},
  publisher    = {Lund University},
  title        = {Fabrication and characterization of a molecular adhesive layer for micro- and nanofabricated electrochemical electrodes},
  year         = {2002},
}