Surface-enhanced Raman scattering from individual Au nanoparticles and nanoparticle dimer substrates

被引：1027

作者：

Talley, CE

Jackson, JB

Oubre, C

Grady, NK

Hollars, CW

Lane, SM

Huser, TR

Nordlander, P

Halas, NJ

机构：

[1] Rice Univ, Dept Elect & Comp Engn, Houston, TX 77005 USA

[2] Rice Univ, Lab Nanophoton, Houston, TX 77005 USA

[3] Lawrence Livermore Natl Lab, Chem & Mat Sci Directorate, Livermore, CA 94550 USA

[4] Lawrence Livermore Natl Lab, Phys & Adv Technol Directorate, Livermore, CA 94550 USA

[5] Univ Calif Davis, NSF, Ctr Biophoton Sci & Technol, Sacramento, CA 95817 USA

[6] Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA

来源：

NANO LETTERS | 2005年 / 5卷 / 08期

关键词：

D O I：

10.1021/nl050928v

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Surf ace-enhanced Raman scattering (SERS) intensities for individual Au nanospheres, nanoshells, and nanosphere and nanoshell dimers coated with nonresonant molecules are measured, where the precise nanoscale geometry of each monomer and dimer is identified through in situ atomic force microscopy. The observed intensities correlate with the integrated quartic local electromagnetic field calculated for each specific nanostructure geometry. In this study, we find that suitably fabricated nanoshells can provide SERS enhancements comparable to nanosphere dimers.

引用

页码：1569 / 1574

页数：6

共 39 条

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