Femtosecond Laser-Nanostructured Substrates for Surface-Enhanced Raman Scattering

被引：135
|
作者：
Diebold, Eric D. [1 ]
Mack, Nathan H. [2 ]
Doom, Stephen K. [2 ]
Mazur, Eric [1 ]
机构：
[1] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA
[2] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA
来源：
LANGMUIR | 2009年 / 25卷 / 03期
基金：
美国国家科学基金会;
关键词：
AGGREGATED SILVER FILMS; OPTICAL-PROPERTIES; SILICON; SPECTROSCOPY; MOLECULES; MORPHOLOGY; ELECTRODE; SPECTRA; GOLD; SITE;
D O I：
10.1021/la803357q
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We present a new type of surface-enhanced Raman scattering (SERS) substrate that exhibits extremely large and uniform cross-section enhancements over a macroscopic (greater than 25 mm(2)) area. The substrates are fabricated using a femtosecond laser nanostructuring process, followed by thermal deposition of silver. SERS signals from adsorbed molecules show a spatially uniform enhancement factor of approximately 10(7). Spectroscopic characterization of these substrates suggests their potential for use in few or single-molecule Raman spectroscopy.
引用
收藏
页码：1790 / 1794
页数：5
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