Surface-enhanced Raman scattering on nanoporous Au

S. O. Kucheyev, J. R. Hayes, J. Biener, Thomas R Huser, C. E. Talley, A. V. Hamza

Research output: Contribution to journalArticle

176 Citations (Scopus)

Abstract

Colloidal solutions of metal nanoparticles are currently among the most studied substrates for sensors based on surface-enhanced Raman scattering (SERS). However, such substrates often suffer from not being cost-effective, reusable, or stable. Here, we develop nanoporous Au as a highly active, tunable, stable, biocompatible, and reusable SERS substrate. Nanoporous Au is prepared by a facile process of free corrosion of AgAu alloys followed by annealing. Results show that nanofoams with average pore widths of ∼250 nm exhibit the largest SERS signal for 632.8 nm excitation. This is attributed to the electromagnetic SERS enhancement mechanism with additional field localization within pores.

Original languageEnglish (US)
Article number053102
JournalApplied Physics Letters
Volume89
Issue number5
DOIs
StatePublished - 2006

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Raman spectra
porosity
corrosion
electromagnetism
costs
nanoparticles
annealing
augmentation
sensors
metals
excitation

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Kucheyev, S. O., Hayes, J. R., Biener, J., Huser, T. R., Talley, C. E., & Hamza, A. V. (2006). Surface-enhanced Raman scattering on nanoporous Au. Applied Physics Letters, 89(5), [053102]. https://doi.org/10.1063/1.2260828

Surface-enhanced Raman scattering on nanoporous Au. / Kucheyev, S. O.; Hayes, J. R.; Biener, J.; Huser, Thomas R; Talley, C. E.; Hamza, A. V.

In: Applied Physics Letters, Vol. 89, No. 5, 053102, 2006.

Research output: Contribution to journalArticle

Kucheyev, SO, Hayes, JR, Biener, J, Huser, TR, Talley, CE & Hamza, AV 2006, 'Surface-enhanced Raman scattering on nanoporous Au', Applied Physics Letters, vol. 89, no. 5, 053102. https://doi.org/10.1063/1.2260828
Kucheyev SO, Hayes JR, Biener J, Huser TR, Talley CE, Hamza AV. Surface-enhanced Raman scattering on nanoporous Au. Applied Physics Letters. 2006;89(5). 053102. https://doi.org/10.1063/1.2260828
Kucheyev, S. O. ; Hayes, J. R. ; Biener, J. ; Huser, Thomas R ; Talley, C. E. ; Hamza, A. V. / Surface-enhanced Raman scattering on nanoporous Au. In: Applied Physics Letters. 2006 ; Vol. 89, No. 5.
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