Surface enhanced raman spectroscopy using silver nanoparticles: The effects of particle size and halide ions on aggregation

Garry P. Glaspell, Chen Zuo, Paul W. Jagodzinski

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

A surface enhanced Raman spectroscopy (SERS) investigation of the aggregation of silver nanoparticles formed via LVCC with diameters in the range 5-50 nm were studied. It was found that with 647.1 nm excitation maximum enhancement is observed using particles with 11 nm diameters. Upon addition of sodium halides, enhancement is proportional to the polarizability of the anion. Maximum enhancement was observed when the concentration of the anion is approximately equal to the concentration of the adsorbate.

Original languageEnglish (US)
Pages (from-to)39-51
Number of pages13
JournalJournal of Cluster Science
Volume16
Issue number1
DOIs
StatePublished - Mar 2005
Externally publishedYes

Keywords

  • Aggregation
  • Halide
  • Nanoparticles
  • SERS
  • Silver

ASJC Scopus subject areas

  • Biochemistry
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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