Preparation of mesoscopic gold rings and split rings by selective wetting of the contact points between the spheres within colloidal crystals

被引：0

作者：

Sabine Kaufmann

Herbert Schletter

Daniel Lehmann

Francisc Haidu

Dietrich R. T. Zahn

Michael Hietschold

Werner A. Goedel

机构：

[1] Chemnitz University of Technology,Physical Chemistry

[2] Chemnitz University of Technology,Solid Surfaces Analysis Group, Institute of Physics

[3] Chemnitz University of Technology,Semiconductor Physics, Institute of Physics

来源：

Journal of Materials Science | 2012年 / 47卷

关键词：

Silica Sphere; Colloidal Crystal; Metallic Gold; Split Ring; Gold Chloride;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Rings and split rings of sub-micrometer size are prepared by the infiltration of colloidal crystals of spherical silica particles with diameters of about 1 μm by diluted solutions of tetrachloroauric acid in butanone, followed by the evaporation of the butanone, the annealing of the samples at elevated temperatures and the removal of the silica spheres with hydrofluoric acid. X-ray photoelectron spectroscopy, energy dispersive X-ray spectroscopy and electron backscatter diffraction investigations reveal that the obtained rings and split rings are made out of metallic gold.

引用

页码：4530 / 4539

页数：9