Immobilized Nanorod Assemblies: Fabrication and Understanding of Large Area Surface-Enhanced Raman Spectroscopy Substrates

被引：144

作者：

Greeneltch, Nathan G. ^{[1
]}

Blaber, Martin G. ^{[1
]}

Henry, Anne-Isabelle ^{[1
]}

Schatz, George C. ^{[1
]}

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

机构：

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

来源：

ANALYTICAL CHEMISTRY | 2013年 / 85卷 / 04期

基金：

美国国家科学基金会;

关键词：

DISCRETE-DIPOLE APPROXIMATION; SCULPTURED THIN-FILMS; NANOSPHERE SURFACES; EXCITATION SPECTROSCOPY; SILVER FILM; SCATTERING; SERS; GROWTH; NANOPARTICLES; ABSORPTION;

D O I：

10.1021/ac303269w

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

We describe the fabrication of optimized plasmonic substrates in the form of immobilized nanorod assemblies (INRA) for surface-enhanced Raman spectroscopy (SERS). Included are high-resolution scanning electron micrograph (SEM) images of the surface structures, along with a mechanistic description of their growth. It is shown that, by varying the size of support microspheres, the surface plasmon resonance is tuned between 330 and 1840 nm. Notably, there are predicted optimal microsphere sizes for each of the commonly used SERS laser wavelengths of 532, 633, 785, and 1064 nm.

引用

页码：2297 / 2303

页数：7

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