Surprisingly long-range surface-enhanced raman scattering (SERS) on Au-Ni multisegmented nanowires

Wei Wei, Shuzhou Li, Jill E. Millstone, Matthew J. Banholzer, Xiaodong Chen, Xiaoyang Xu, George C. Schatz, Chad A. Mirkin

Research output: Contribution to journalArticlepeer-review

77 Scopus citations

Abstract

Very long range surface-enhanced Raman scattering is observed from a nickel nanowire that is separated by 120 nm from a pair of gold nanodisks. The excitation of the surface-plasmon resonance (SPR) from the gold nanodisk pair generates an enhanced electromagnetic field near the nickel segment (SEM, left), leading to Raman intensity greater than the nickel alone (right).

Original languageEnglish (US)
Pages (from-to)4210-4212
Number of pages3
JournalAngewandte Chemie - International Edition
Volume48
Issue number23
DOIs
StatePublished - May 25 2009
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

Keywords

  • Nanowires
  • On-wire lithography
  • Surface chemistry
  • Surface plasmon resonance
  • Surface-enhanced Raman scattering

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