Effects of laser illumination during controlled-rate oxidation-reduction cycles on sers of chloride at roughened ag electrodes

David D. Tuschel; Jeanne E. Pemberton

doi:10.1021/la00079a010

Effects of laser illumination during controlled-rate oxidation-reduction cycles on sers of chloride at roughened ag electrodes

David D. Tuschel, Jeanne E. Pemberton

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8 Scopus citations

Abstract

A study of the effects of laser wavelength and power density during controlled-rate illuminated oxidation-reduction cycles (ORCs) of Ag electrodes on the SERS intensity of the ν(Ag-Cl) band is reported. SERS spectra were acquired with a constant excitation wavelength after illuminated ORCs to deconvolute the SERS excitation behavior from the ORC illumination effects. Enhancement of SERS intensities is greater for illumination in the blue and green wavelength regions than for illumination in the red wavelength region. This enhancement is selective for the illumination position on the Ag electrode during the ORC. These results suggest the enhancement results from a photoeffect analogous to latent image formation in silver halide photography.

Original language	English (US)
Pages (from-to)	58-62
Number of pages	5
Journal	Langmuir
Volume	4
Issue number	1
DOIs	https://doi.org/10.1021/la00079a010
State	Published - Jan 1 1988

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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abstract = "A study of the effects of laser wavelength and power density during controlled-rate illuminated oxidation-reduction cycles (ORCs) of Ag electrodes on the SERS intensity of the ν(Ag-Cl) band is reported. SERS spectra were acquired with a constant excitation wavelength after illuminated ORCs to deconvolute the SERS excitation behavior from the ORC illumination effects. Enhancement of SERS intensities is greater for illumination in the blue and green wavelength regions than for illumination in the red wavelength region. This enhancement is selective for the illumination position on the Ag electrode during the ORC. These results suggest the enhancement results from a photoeffect analogous to latent image formation in silver halide photography.",

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N2 - A study of the effects of laser wavelength and power density during controlled-rate illuminated oxidation-reduction cycles (ORCs) of Ag electrodes on the SERS intensity of the ν(Ag-Cl) band is reported. SERS spectra were acquired with a constant excitation wavelength after illuminated ORCs to deconvolute the SERS excitation behavior from the ORC illumination effects. Enhancement of SERS intensities is greater for illumination in the blue and green wavelength regions than for illumination in the red wavelength region. This enhancement is selective for the illumination position on the Ag electrode during the ORC. These results suggest the enhancement results from a photoeffect analogous to latent image formation in silver halide photography.

AB - A study of the effects of laser wavelength and power density during controlled-rate illuminated oxidation-reduction cycles (ORCs) of Ag electrodes on the SERS intensity of the ν(Ag-Cl) band is reported. SERS spectra were acquired with a constant excitation wavelength after illuminated ORCs to deconvolute the SERS excitation behavior from the ORC illumination effects. Enhancement of SERS intensities is greater for illumination in the blue and green wavelength regions than for illumination in the red wavelength region. This enhancement is selective for the illumination position on the Ag electrode during the ORC. These results suggest the enhancement results from a photoeffect analogous to latent image formation in silver halide photography.

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Effects of laser illumination during controlled-rate oxidation-reduction cycles on sers of chloride at roughened ag electrodes

Abstract

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