Aqueous gold sols of rod-shaped particles

被引：237

作者：

vanderZande, BMI ^{[1
]}

Bohmer, MR ^{[1
]}

Fokkink, LGJ ^{[1
]}

Schonenberger, C ^{[1
]}

机构：

[1] UNIV UTRECHT,VANT HOFF LAB PHYS & COLLOID CHEM,NL-3584 CH UTRECHT,NETHERLANDS

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 1997年 / 101卷 / 06期

关键词：

D O I：

10.1021/jp963348i

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：

Aqueous dispersions of rodlike gold particles are obtained by electrodeposition in nanopores of anodized alumina attached to a conductive support followed by dissolution of the alumina and stabilization of the rods with poly(vinylpyrrolydon). The obtained sol of monodisperse gold rods is examined by electron microscopy and visible (VIS) and near-infrared (NIR) spectroscopy. In the VIS/NIR absorption spectra two absorption maxima are present. With increasing aspect ratio, the maximum around 520 nm shifts to shorter wavelength, while the other maximum shifts into the near-infrared regime, which is in agreement with theoretical predictions.

引用

页码：852 / 854

页数：3

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