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Waveguide surface plasmon resonance sensor for electrochemically controlled surface reactions

Waveguide surface plasmon resonance sensor for electrochemically controlled surface reactions
Waveguide surface plasmon resonance sensor for electrochemically controlled surface reactions
Electrochemical oxidation of the surface of a thin gold film overlaid on an optical waveguide and placed in a cell containing sulfuric acid is monitored by integrated optical surface plasmon resonance (IOSPR) combined with cyclic voltammetry. Waveguide transmittance correlates well with the charge transferred to and from the electrode to oxidize and reduce the surface, with a 60% reduction in transmittance being observed for complete formation of the surface oxide. IOSPR sensors combined with electrochemical measurement and control show potential for sensitive and robust integrated multisensors for electroactive species.
noble-metals, oxide film
0003-6935
6242-6245
Abanulo, Jude C.
5f9aeb75-a4c1-458b-b465-a41c807a2f32
Harris, Richard D.
485577e2-e094-4ff8-a19f-73df39e47ce4
Bartlett, Philip N.
d99446db-a59d-4f89-96eb-f64b5d8bb075
Wilkinson, James S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Abanulo, Jude C.
5f9aeb75-a4c1-458b-b465-a41c807a2f32
Harris, Richard D.
485577e2-e094-4ff8-a19f-73df39e47ce4
Bartlett, Philip N.
d99446db-a59d-4f89-96eb-f64b5d8bb075
Wilkinson, James S.
73483cf3-d9f2-4688-9b09-1c84257884ca

Abanulo, Jude C., Harris, Richard D., Bartlett, Philip N. and Wilkinson, James S. (2001) Waveguide surface plasmon resonance sensor for electrochemically controlled surface reactions. Applied Optics, 40 (34), 6242-6245. (doi:10.1364/AO.40.006242).

Record type: Article

Abstract

Electrochemical oxidation of the surface of a thin gold film overlaid on an optical waveguide and placed in a cell containing sulfuric acid is monitored by integrated optical surface plasmon resonance (IOSPR) combined with cyclic voltammetry. Waveguide transmittance correlates well with the charge transferred to and from the electrode to oxidize and reduce the surface, with a 60% reduction in transmittance being observed for complete formation of the surface oxide. IOSPR sensors combined with electrochemical measurement and control show potential for sensitive and robust integrated multisensors for electroactive species.

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More information

Published date: 2001
Keywords: noble-metals, oxide film
Learn more about Optoelectronics Research Centre research Learn more about Chemistry research

Identifiers

Local EPrints ID: 19370
URI: http://eprints.soton.ac.uk/id/eprint/19370
DOI: doi:10.1364/AO.40.006242
ISSN: 0003-6935
PURE UUID: 4d033645-470e-470a-8c99-a0650141df96
ORCID for Philip N. Bartlett: ORCID iD orcid.org/0000-0002-7300-6900
ORCID for James S. Wilkinson: ORCID iD orcid.org/0000-0003-4712-1697

Catalogue record

Date deposited: 13 Feb 2006
Last modified: 16 Mar 2024 02:42

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Contributors

Author: Jude C. Abanulo
Author: Richard D. Harris
Author: Philip N. Bartlett ORCID iD
Author: James S. Wilkinson ORCID iD

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