Probing the structure of single-molecule surface-enhanced Raman scattering hot spots

被引：938

作者：

Camden, Jon P. ^{[1
]}

Dieringer, Jon A. ^{[1
]}

Wang, Yingmin ^{[2
]}

Masiello, David J. ^{[1
]}

Marks, Lawrence D. ^{[2
]}

Schatz, George C. ^{[1
]}

Van Duyne, Richard P. ^{[1
]}

机构：

[1] NW Univ, Dept Chem, Evanston, IL 60208 USA

[2] NW Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2008年 / 130卷 / 38期

关键词：

D O I：

10.1021/ja8051427

中图分类号：

O6 [化学];

学科分类号：

0703 [化学];

摘要：

We present here a detailed study of the specific nanoparticle structures that give rise to single-molecule surface-enhanced Raman scattering (SMSERS). A variety of structures are observed, but the simplest are dimers of Ag nanocrystals. We chose one of these structures for detailed study using electrodynamics calculations and found that the electromagnetic SERS enhancement factors of 10(9) are easily obtained and are consistent with single-molecule SERS activity.

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页码：12616 / +

页数：3

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