Journal article
Surface-enhanced Raman scattering detected temperature programmed desorption: Optical properties, nanostructure, and stability of silver film over SiO2 nanosphere surfaces
Journal of Physical Chemistry B, Vol.105(29), pp.6907-6915
2001
DOI: 10.1021/jp010333y
Abstract
In this work, silver film over silica nanosphere (AgFON) surfaces are shown to be thermally stable, SERS-active substrates that are suitable for use in ultrahigh vacuum (UHV) conditions. The metal FON surface is a materials general, cost-effective, and highly SERS-active surface. The SERS activity and thermal stability were investigated by adsorbing benzene, pyridine, and C60 onto the AgFON surface. We chose these adsorbates for the following reasons: (1) vibrational spectroscopy and temperature-programmed desorption (TPD) behavior of benzene adsorbed onto metal surfaces has been widely investigated and is a simple system to study, respectively; (2) characteristics of pyridine adsorption on the AgFON surface can be compared to a large body of previous studies; and (3) high-temperature studies of C60 adsorption can be performed. TPD demonstrates that the AgFON surface has two classes of adsorption sites: (1) those that mimic the behavior of single crystal surfaces and (2) defect sites with higher adsorba...
Details
- Title: Subtitle
- Surface-enhanced Raman scattering detected temperature programmed desorption: Optical properties, nanostructure, and stability of silver film over SiO2 nanosphere surfaces
- Creators
- Maritoni LitorjaChristy L HaynesAmanda J HaesTraci R JensenRichard P Van Duyne
- Resource Type
- Journal article
- Publication Details
- Journal of Physical Chemistry B, Vol.105(29), pp.6907-6915
- DOI
- 10.1021/jp010333y
- ISSN
- 1089-5647
- eISSN
- 1520-5207
- Language
- English
- Date published
- 2001
- Academic Unit
- Chemistry
- Record Identifier
- 9983985932002771
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