Widely Tunable Plasmon Resonances from Visible to Near-Infrared of Hollow Silver Nanoshells

被引：14

作者：

Kado, Shinpei ^{[1
]}

Yokomine, Shoichi ^{[1
]}

Kimura, Keiichi ^{[1
]}

机构：

[1] Wakayama Univ, Fac Syst Engn, Dept Appl Chem, Sakae Dani 930, Wakayama 6408510, Japan

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 2017年 / 90卷 / 05期

关键词：

DISCRETE-DIPOLE APPROXIMATION; OPTICAL-PROPERTIES; AG NANOSHELLS; GOLD; NANOSTRUCTURES; KIRKENDALL; NANOPARTICLES; NANOCRYSTALS; NANOSPHERES; SENSITIVITY;

D O I：

10.1246/bcsj.20160389

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Tuning of localized surface plasmon resonance (LSPR) of metal nanostructures has attracted a great deal of interest, and the controlled syntheses of them have been extensively studied for fine tuning of their LSPR. In this paper, we report widely tunable LSPR from visible to near-infrared of hollow silver nanoshells synthesized by reduction of silver thiocyanate. The silver nanoshell exhibits size-and thickness-dependent LSPR for symmetric dipole mode from visible to near-infrared regions, while the antisymmetric dipole resonance is not changed. By combining characterization of the nanoshells by transmission electron microscopy and theoretical simulation based on discrete dipole approximation, we reveal that the LSPRs are controlled by the size and shell thickness of the nanoshells and also that dimples on the shell surfaces would significantly affect the LSPRs of symmetric dipole, and quadrupole mode for larger nanoshells.

引用

页码：537 / 545

页数：9

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