Optical Properties of Nested Pyramidal Nanoshells.
作者信息
Lin Julia Y, Hasan Warefta, Yang Jiun-Chan, Odom Teri W
机构信息
Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113.
出版信息
J Phys Chem C Nanomater Interfaces. 2010 Jan 8;114(16):7432-7435. doi: 10.1021/jp910627r.
Abstract
This paper describes the fabrication and characterization of nested Au pyramidal nanoshells. These particles exhibited two plasmon resonances at visible and near-infrared wavelengths that could be manipulated depending on the size of the gap between inner and outer pyramidal shells. We found that larger gaps (30 nm) exhibited much larger Raman scattering responses compared to smaller gaps (5 nm) in the nested pyramidal shells. The SERS-activity of these anisotropic particles can be optimized by adjusting the distances between the inner and outer Au shells.
摘要
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