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

doi:10.1021/jp903137n

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

材料科学高等研究所

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
巻	113
号	25
DOI	https://doi.org/10.1021/jp903137n
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

文献へのアクセス

10.1021/jp903137n

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引用スタイル

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AU - Guan, P. F.

AU - Zhang, Ling

AU - Fujita, T.

AU - Chen, M. W.

PY - 2009/6/25

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AB - 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.

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