Rapid, Solution-Based Characterization of Optimized SERS Nanoparticle Substrates

被引：104

作者：

Laurence, Ted A. ^{[1
]}

Braun, Gary ^{[2
]}

Talley, Chad ^{[1
]}

Schwartzberg, Adam ^{[1
]}

Moskovits, Martin ^{[2
]}

Reich, Norbert ^{[2
]}

Huser, Thomas ^{[3
,4
]}

机构：

[1] Lawrence Livermore Natl Lab, Chem Mat Earth & Life Sci Directorate, Livermore, CA 94550 USA

[2] Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA

[3] Univ Calif Davis, Dept Internal Med, Sacramento, CA 95817 USA

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

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2009年 / 131卷 / 01期

关键词：

SURFACE-ENHANCED RAMAN; FLUORESCENCE CORRELATION SPECTROSCOPY; SCATTERING SERS; PARTICLES; MOLECULES; SILVER; MONOLAYER;

D O I：

10.1021/ja806236k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We demonstrate the rapid optical characterization of large numbers of individual metal nanoparticles freely diffusing in colloidal solution by confocal laser spectroscopy to guide nanoparticle engineering and optimization. We use ratios of the Rayleigh and Raman scattering response and rotational diffusion timescales of individual nanoparticles to show that hollow gold nanospheres and solid silver nanoparticle dimers linked with a bifunctional ligand, both specifically designed nanostructures, exhibit significantly higher monodispersity than randomly aggregated gold and silver nanoparticles.

引用

页码：162 / 169

页数：8

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