SERS and SEM of Roughened Silver Electrode Surfaces Formed by Controlled Oxidation-Reduction in Aqueous Chloride Media

David D. Tuschel; Jeanne E. Pemberton; Joseph E. Cook

doi:10.1021/la00070a002

SERS and SEM of Roughened Silver Electrode Surfaces Formed by Controlled Oxidation-Reduction in Aqueous Chloride Media

David D. Tuschel, Jeanne E. Pemberton, Joseph E. Cook

Research output: Contribution to journal › Article › peer-review

59 Scopus citations

Abstract

The SERS intensity of specifically adsorbed Cl^-ions at Ag electrodes whose surface morphologies vary dramatically has been investigated. Reasonable control of the Ag electrode surface morphology is afforded by the controlled electrochemical rate of oxidation and reduction of the Ag surface prior to SERS experiments. Scanning electron microscopy is used to determine surface morphology on these electrodes of varying roughness. It is found that the SERS intensity increases as the diameter of the surface roughness features decreases and the two-dimensional surface concentration of roughness features increases. These observations are in general agreement with theoretical predictions based on an electromagnetic enhancement model for SERS.

Original language	English (US)
Pages (from-to)	380-388
Number of pages	9
Journal	Langmuir
Volume	2
Issue number	4
DOIs	https://doi.org/10.1021/la00070a002
State	Published - 1986

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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10.1021/la00070a002

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title = "SERS and SEM of Roughened Silver Electrode Surfaces Formed by Controlled Oxidation-Reduction in Aqueous Chloride Media",

abstract = "The SERS intensity of specifically adsorbed Cl-ions at Ag electrodes whose surface morphologies vary dramatically has been investigated. Reasonable control of the Ag electrode surface morphology is afforded by the controlled electrochemical rate of oxidation and reduction of the Ag surface prior to SERS experiments. Scanning electron microscopy is used to determine surface morphology on these electrodes of varying roughness. It is found that the SERS intensity increases as the diameter of the surface roughness features decreases and the two-dimensional surface concentration of roughness features increases. These observations are in general agreement with theoretical predictions based on an electromagnetic enhancement model for SERS.",

author = "Tuschel, {David D.} and Pemberton, {Jeanne E.} and Cook, {Joseph E.}",

year = "1986",

doi = "10.1021/la00070a002",

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journal = "Langmuir",

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publisher = "American Chemical Society",

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AU - Tuschel, David D.

AU - Pemberton, Jeanne E.

AU - Cook, Joseph E.

PY - 1986

Y1 - 1986

N2 - The SERS intensity of specifically adsorbed Cl-ions at Ag electrodes whose surface morphologies vary dramatically has been investigated. Reasonable control of the Ag electrode surface morphology is afforded by the controlled electrochemical rate of oxidation and reduction of the Ag surface prior to SERS experiments. Scanning electron microscopy is used to determine surface morphology on these electrodes of varying roughness. It is found that the SERS intensity increases as the diameter of the surface roughness features decreases and the two-dimensional surface concentration of roughness features increases. These observations are in general agreement with theoretical predictions based on an electromagnetic enhancement model for SERS.

AB - The SERS intensity of specifically adsorbed Cl-ions at Ag electrodes whose surface morphologies vary dramatically has been investigated. Reasonable control of the Ag electrode surface morphology is afforded by the controlled electrochemical rate of oxidation and reduction of the Ag surface prior to SERS experiments. Scanning electron microscopy is used to determine surface morphology on these electrodes of varying roughness. It is found that the SERS intensity increases as the diameter of the surface roughness features decreases and the two-dimensional surface concentration of roughness features increases. These observations are in general agreement with theoretical predictions based on an electromagnetic enhancement model for SERS.

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SERS and SEM of Roughened Silver Electrode Surfaces Formed by Controlled Oxidation-Reduction in Aqueous Chloride Media

Abstract

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