Single gold nanostars enhance Raman scattering

被引：179

作者：

Hrelescu, Calin ^{[1
]}

Sau, Tapan K. ^{[1
]}

Rogach, Andrey L. ^{[1
]}

Jackel, Frank ^{[1
]}

Feldmann, Jochen ^{[1
]}

机构：

[1] Univ Munich, Dept Phys & CeNS, Photon & Optoelect Grp, D-80799 Munich, Germany

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 15期

关键词：

adsorption; aggregation; coatings; gold; monolayers; nanoparticles; organic compounds; self-assembly; surface enhanced Raman scattering; SURFACE; NANOPARTICLES; MOLECULE; SPECTROSCOPY;

D O I：

10.1063/1.3119642

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Raman scattering from single gold nanostars coated with self-assembled monolayers of 4-mercaptobenzoic acid is observed. The Raman signal can be detected without the need of forming particle aggregates or resonant electronic excitation of the analyte. A total Raman enhancement factor of 10(7) for individual nanostars is estimated. These features make gold nanostars promising for Raman imaging in cells or cellular membranes.

引用

页数：3

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