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Proceedings Paper

Surface Enhanced Fluorescence Of Basic Fuchsin At Roughened Silver Electrodes
Author(s): Jeanne E. Pemberton; Steven J. McCloskey
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Paper Abstract

Surface enhanced fluorescence and surface enhanced resonance Raman scattering (SERRS) of the dye basic fuchsin are observed on Ag electrode surfaces which have been electrochemically roughened with an oxidation-reduction cycle (ORC) in the presence of basic fuchsin and 0.1 M KC1. The fluorescence of the dye on the Ag surface is red shifted by ca. 26 nm relative to solution fluorescence, and as time passes, the fluorescence broadens into the blue region of the spectrum. The enhancement factor is ca. 26 ± 10 for a vertically oriented monolayer of the dye on the roughened Ag electrode. Scanning electron microscopy (SEM) indicates that unique roughness features are formed during the ORC in the presence of the dye. These features appear to be necessary for surface enhanced fluorescence.

Paper Details

Date Published: 17 May 1989
PDF: 9 pages
Proc. SPIE 1054, Fluorescence Detection III, (17 May 1989); doi: 10.1117/12.951548
Show Author Affiliations
Jeanne E. Pemberton, University of Arizona (United States)
Steven J. McCloskey, University of Arizona (United States)

Published in SPIE Proceedings Vol. 1054:
Fluorescence Detection III
E. Roland Menzel, Editor(s)

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