Effect of residual silver on surface-enhanced raman scattering of dealloyed nanoporous gold

Ling Zhang, Luyang Chen, Hongwen Liu, Ying Hou, Akihiko Hirata, Takeshi Fujita, Mingwei Chen

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

Nanoporous gold films containing various amounts of residual silver have been synthesized by controllable dealloying and subsequent annealing for surface-enhanced Raman scattering (SERS). It was found that the residual Ag plays an important role in the SERS effect of dealloyed nanoporous gold. More residual Ag gives rise to better SERS effects when nanopore sizes are nearly identical. Moreover, homogenization of the residual silver by annealing can further improve the SERS enhancement of nanoporous Au-Ag alloys.

Original languageEnglish
Pages (from-to)19583-19587
Number of pages5
JournalJournal of Physical Chemistry C
Volume115
Issue number40
DOIs
Publication statusPublished - 2011 Oct 13
Externally publishedYes

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Silver
Gold
Raman scattering
silver
Raman spectra
gold
Annealing
annealing
Nanopores
homogenizing
augmentation

ASJC Scopus subject areas

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

Cite this

Effect of residual silver on surface-enhanced raman scattering of dealloyed nanoporous gold. / Zhang, Ling; Chen, Luyang; Liu, Hongwen; Hou, Ying; Hirata, Akihiko; Fujita, Takeshi; Chen, Mingwei.

In: Journal of Physical Chemistry C, Vol. 115, No. 40, 13.10.2011, p. 19583-19587.

Research output: Contribution to journalArticle

Zhang, Ling ; Chen, Luyang ; Liu, Hongwen ; Hou, Ying ; Hirata, Akihiko ; Fujita, Takeshi ; Chen, Mingwei. / Effect of residual silver on surface-enhanced raman scattering of dealloyed nanoporous gold. In: Journal of Physical Chemistry C. 2011 ; Vol. 115, No. 40. pp. 19583-19587.
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