Nature of Surface-Enhanced-Raman-Scattering Active Sites on Coldly Condensed Ag Films
- 19 December 1983
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 51 (25) , 2314-2317
- https://doi.org/10.1103/physrevlett.51.2314
Abstract
Evidence is presented that coldly deposited Ag films are highly porous and that the pores persist up to 170 K but are heated out at 250 K. Diffusion of adsorbed pyridine into the pores is negligible below 60 K but readily takes place at 130 K. Theoretical results on the classical electromagnetic enhancement of the Raman cross section within the pores as well as a survey of published surface-enhanced Raman-scattering data lead the authors to conclude that the surface-enhanced Raman-scattering active sites of coldly deposited Ag films are within the pores.Keywords
This publication has 18 references indexed in Scilit:
- The role of cavity sites in surface-enhanced Raman scatteringChemical Physics Letters, 1983
- Exact calculations of p-polarized electromagnetic fields incident on grating surfaces: Surface polariton resonancesOptics Communications, 1983
- The role of direct surface interaction in surface enhanced Raman scattering by pyridine and CO on silverSolid State Communications, 1982
- Role of atomic-scale roughness in surface-enhanced Raman scatteringPhysical Review B, 1981
- Surface enhanced Raman scattering (SERS): Annealing the silver substrateSolid State Communications, 1981
- Surface polaritons on large-amplitude gratingsPhysical Review B, 1981
- Ultrahigh-Vacuum Studies of Enhanced Raman Scattering from Pyridine on Ag SurfacesPhysical Review Letters, 1980
- Influence of the Local Surface Structure on thePhotoemission of Adsorbed XenonPhysical Review Letters, 1979
- Optical properties of rough surfaces: General theory and the small roughness limitPhysical Review B, 1977
- Optical Constants of the Noble MetalsPhysical Review B, 1972