Local thermal elevation probing of metal nanostructures during laser illumination utilizing surface-enhanced Raman scattering from a single-walled carbon nanotube

被引：19

作者：

Takase, Mai ^{[1
,2
]}

Nabika, Hideki ^{[1
,3
]}

Hoshina, Shinji ^{[1
]}

Nara, Masanobu ^{[1
]}

Komeda, Ichiro ^{[1
]}

Komeda, Kei-ichiro ^{[1
]}

Shito, Ryukou ^{[1
]}

Yasuda, Satoshi ^{[1
]}

Murakoshi, Kei ^{[1
]}

机构：

[1] Hokkaido Univ, Dept Chem, Fac Sci, Sapporo, Hokkaido 0600810, Japan

[2] Hokkaido Univ, Sect Catalyt React Chem, Catalysis Res Ctr, Sapporo, Hokkaido 0010021, Japan

[3] Yamagata Univ, Dept Mat & Biol Chem, Fac Sci, Yamagata 9908560, Japan

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2013年 / 15卷 / 12期

关键词：

TEMPERATURE-DEPENDENCE; SOLID-SURFACE; PLASMON; SPECTRA; SPECTROSCOPY; EXCITATION; MOLECULES; STM;

D O I：

10.1039/c3cp43728k

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Localized laser-induced heating of an individual Au nano-dimer was quantitatively evaluated by measuring the surface-enhanced Raman scattering (SERS) from an isolated single-walled carbon nanotube (SWNT) supported above the nano-gap between the two metal centres of the dimer. The SERS measurement showed an apparent wavenumber shift in the G-band of the Raman spectra with an increase in the power of the illuminated laser light, indicating the laser-induced local thermal elevation of the Au nano-dimer. In addition, it was found that the effect of the laser illumination on the thermal elevation in air was larger than that in aqueous solution, indicating that the localized laser-heating effect is strongly influenced by the surrounding environment. The present technique provides a measure of the highly localized heating effect of plasmonic metal nanostructures under photo-illumination.

引用

页码：4270 / 4274

页数：5

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