Determination of Enhancement Factors for Surface-Enhanced FT-Raman Spectroscopy on Gold and Silver Surfaces


Journal Article

The combination of surface-enhanced Raman spectroscopy (SERS) with near-infrared (NIR) excitation should be of considerable benefit for trace detection of biological and environmental samples. Enhancement factors for SERS of p-aminobenzoic acid (PABA) on silver/alumina, silver island, gold/alumina and gold island surfaces were determined using unenhanced FT-Raman spectra of PABA on glass and glass/alumina surfaces as references. The silver/alumina substrate provided the greatest enhancement factor, followed by silver island, gold/alumina and gold island substrates, respectively. An enhancement factor in excess of 106 for PABA on a silver/alumina substrate compares favourably with literature reports of similar systems at shorter wavelengths.

Full Text

Duke Authors

Cited Authors

  • Ibrahim, A; Oldham, PB; Stokes, DL; Vo-Dinh, T

Published Date

  • January 1, 1996

Published In

Volume / Issue

  • 27 / 12

Start / End Page

  • 887 - 891

International Standard Serial Number (ISSN)

  • 0377-0486

Digital Object Identifier (DOI)

  • 10.1002/(SICI)1097-4555(199612)27:12<887::AID-JRS46>3.0.CO;2-2

Citation Source

  • Scopus