Silver particles on stochastic quartz substrates providing tenfold increase in Raman enhancement

Published

Journal Article

Exceptionally strong Raman enhancements have been observed for molecules adsorbed on silver deposited onto etched quartz substrates. A stochastic arrangement of tall quartz posts, with an average spacing of ≃110 nm, is obtained by plasma etching of SiO2 using a silver island film as an etch mask. Silver particles are produced by angle evaporation. Raman enhancement for adsorbed p-nitrobenzoic acid is maximized by optimizing the deposition parameters, which results in a tenfold enhancement compared to island films and crossed-grating structures. Observation of signals from several polyaromatic molecules demonstrates that the surface provides strong Raman enhancement for a variety of adsorbates. © 1985 American Chemical Society.

Full Text

Duke Authors

Cited Authors

  • Meier, M; Wokaun, A; Vo-Dinh, T

Published Date

  • January 1, 1985

Published In

Volume / Issue

  • 89 / 10

Start / End Page

  • 1843 - 1846

International Standard Serial Number (ISSN)

  • 0022-3654

Digital Object Identifier (DOI)

  • 10.1021/j100256a002

Citation Source

  • Scopus