Unraveling the effects of size, composition, and substrate on the localized surface plasmon resonance frequencies of gold and silver nanocubes

A systematic single-particle approach

Emilie Ringe, Jeffrey M. McMahon, Kwonnam Sohn, Claire Cobley, Younan Xia, Jiaxing Huang, George C Schatz, Laurence D. Marks, Richard P. Van Duyne

Research output: Contribution to journalArticle

206 Citations (Scopus)

Abstract

Localized surface plasmon resonances (LSPRs), resulting from the interaction of light with metal nanoparticles, are powerful tools for biological sensors, surface-enhanced spectroscopies, and optical devices. LSPR frequencies are strongly dependent on a nanoparticle's structure, composition, and local dielectric environment. However, these relationships are prohibitively difficult or impossible to probe from bulk solutions due to the heterogeneity of chemically synthesized products. In this study, systematic single-particle structure-property measurements, coupled with a statistical analysis and FDTD calculations, are performed on silver and gold nanocubes. The dependencies of LSPR frequencies on nanocube size, composition, and substrate dielectric constant are determined. The results obtained represent the most quantitative measurements and analysis to date, yielding predictive rules and fundamental insights into the interactions between nanoparticles and substrates.

Original languageEnglish
Pages (from-to)12511-12516
Number of pages6
JournalJournal of Physical Chemistry C
Volume114
Issue number29
DOIs
Publication statusPublished - Jul 29 2010

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Surface plasmon resonance
Silver
surface plasmon resonance
Gold
silver
gold
nanoparticles
Substrates
Chemical analysis
Nanoparticles
Metal nanoparticles
Optical devices
finite difference time domain method
statistical analysis
Statistical methods
Permittivity
interactions
Spectroscopy
permittivity
probes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Energy(all)

Cite this

Unraveling the effects of size, composition, and substrate on the localized surface plasmon resonance frequencies of gold and silver nanocubes : A systematic single-particle approach. / Ringe, Emilie; McMahon, Jeffrey M.; Sohn, Kwonnam; Cobley, Claire; Xia, Younan; Huang, Jiaxing; Schatz, George C; Marks, Laurence D.; Van Duyne, Richard P.

In: Journal of Physical Chemistry C, Vol. 114, No. 29, 29.07.2010, p. 12511-12516.

Research output: Contribution to journalArticle

Ringe, Emilie ; McMahon, Jeffrey M. ; Sohn, Kwonnam ; Cobley, Claire ; Xia, Younan ; Huang, Jiaxing ; Schatz, George C ; Marks, Laurence D. ; Van Duyne, Richard P. / Unraveling the effects of size, composition, and substrate on the localized surface plasmon resonance frequencies of gold and silver nanocubes : A systematic single-particle approach. In: Journal of Physical Chemistry C. 2010 ; Vol. 114, No. 29. pp. 12511-12516.
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