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Aspect ratio dependence on surface enhanced Raman scattering using silver and gold nanorod substrates

Research output: Contribution to journalArticlepeer-review

Abstract

Silver and gold nanorods with aspect ratios from 1 to 16 have been used as substrates for surface enhanced Raman spectroscopy (SERS) in colloidal solution. The nanorod aspect ratio is varied to give different degrees of overlap between the nanorod longitudinal plasmon band and excitation source in order to determine its effect on overall surface enhancement. Results suggest that enhancement factors are a factor of 10-102 greater for substrates that have plasmon band overlap with the excitation source than for substrates whose plasmon bands do not.

Original languageEnglish (US)
Pages (from-to)165-170
Number of pages6
JournalPhysical Chemistry Chemical Physics
Volume8
Issue number1
DOIs
StatePublished - 2006
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry

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