Localized surface plasmon resonance spectroscopy of single silver nanocubes

被引：1287
作者：
Sherry, LJ
Chang, SH
Schatz, GC
Van Duyne, RP
Wiley, BJ
Xia, YN
机构：
[1] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA
[2] Univ Washington, Dept Chem, Seattle, WA 98195 USA
来源：
NANO LETTERS | 2005年 / 5卷 / 10期
关键词：
D O I：
10.1021/nl0515753
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this work, we use dark-field microscopy to observe a new plasmon resonance effect for a single silver nanocube in which the plasmon line shape has two distinct peaks when the particles are located on a glass substrate. The dependence of the resonance on nanocube size and shape is characterized, and it is found that the bluer peak has a higher figure of merit for chemical sensing applications than that for other particle shapes that have been studied previously. Comparison of the measured results with finite difference time domain (FDTD) electrodynamics calculations enables us to confirm the accuracy of our spectral assignments.
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收藏
页码：2034 / 2038
页数：5
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