The effect of underpotentially deposited Pb on the surface enhanced Raman scattering ability of polycrystalline Ag

doi:10.1016/0039-6028(85)90220-1

Surface Science

Volume 150, Issue 1, 1 February 1985, Pages 226-244

https://doi.org/10.1016/0039-6028(85)90220-1 Get rights and content

Abstract

The effect of submonolayer and monolayer amounts of Pb deposited at underpotential on a polycrystalline Ag electrode surface on the surface enhanced Raman scattering behavior of pyridine and Cl⁻ adsorbates is presented. Surfaces covered by greater than 70% of a Pb monolayer do not support significant surface enhancement. The changes observed in SERS intensity as a function of fractional Pb coverage are interpreted in terms of changes in surface electronic properties and changes in adsorbate coverage. Evidence for changes in the structure of the Pb overlayer is also presented. Investigation of the reversibility of the SERS behavior after deposition and quantitative stripping of varying amounts of Pb provides information on the roles played by various sizes of surface roughness in SERS. These data suggest that both large scale and atomic scale roughness contribute to the SERS intensities measured in these systems.

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The effect of underpotentially deposited Pb on the surface enhanced Raman scattering ability of polycrystalline Ag

Abstract

Chem. Phys. Letters

Chem. Phys. Letters

J. Electron Spectrosc. Related Phenomena

J. Electron Spectrosc. Related Phenomena

J. Electron Spectrosc. Related Phenomena

J. Electron Spectrosc. Related Phenomena

J. Electron Spectrosc. Related Phenomena

Solid State Commun.

Chem. Phys. Letters

Electrochim. Acta

Surface Sci.

Chem. Phys. Letters

J. Electroanal. Chem.

Chem. Phys. Letters

J. Electroanal. Chem.

Surface Sci.

Solid State Commun.