Silver nanoparticles deposited on porous silicon as a surface- enhanced Raman scattering (SERS) active substrate

Leila Zeiri, Katya Rechav, Ze'Ev Porat, Yehuda Zeiri

Research output: Contribution to journalArticlepeer-review

39 Scopus citations

Abstract

Silver nanoparticles were deposited spontaneously from their aqueous solution on a porous silicon (PS) layer. The PS acts both as a reducing agent and as the substrate on which the nanoparticles nucleate. At higher silver ion concentrations, layers of nanoparticle aggregates were formed on the PS surface. The morphology of the metallic layers and their SERS activity were influenced by the concentrations of the silver ion solutions used for deposition. Raman measurements of rhodamine 6G (R6G) and crystal violet (CV) adsorbed on these surfaces showed remarkable enhancement of up to about 10 orders of magnitude.

Original languageEnglish
Pages (from-to)294-299
Number of pages6
JournalApplied Spectroscopy
Volume66
Issue number3
DOIs
StatePublished - 1 Mar 2012

Keywords

  • Crystal violet
  • Metal deposition
  • Porous silicon
  • Rhodamine 6G
  • SERS
  • Surface-enhanced Raman scattering

ASJC Scopus subject areas

  • Instrumentation
  • Spectroscopy

Fingerprint

Dive into the research topics of 'Silver nanoparticles deposited on porous silicon as a surface- enhanced Raman scattering (SERS) active substrate'. Together they form a unique fingerprint.

Cite this