Characteristic length and temperature dependence of surface enhanced raman scattering of nanoporous gold

X. Y. Lang, P. F. Guan, Ling Zhang, T. Fujita, M. W. Chen

研究成果: Article査読

73 被引用数 (Scopus)

抄録

Surface enhanced Raman scattering (SERS) of nanoporous gold (NPG) with various nanopore sizes was investigated at temperatures ranging from 80 to 300 K using rhodamine 6G as probe molecules. It was found that the SERS intensity dramatically increases as temperature and nanopore size decrease. Theoretical analysis indicates that the improved SERS enhancements result from the confluence effects of the electron-phonon scattering, the finite ligament size effect, and the electromagnetic coupling between neighboring gold ligaments, which demonstrate the electromagnetic origin of the SERS effect of NPG.

本文言語English
ページ(範囲)10956-10961
ページ数6
ジャーナルJournal of Physical Chemistry C
113
25
DOI
出版ステータスPublished - 2009 6 25

ASJC Scopus subject areas

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

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