Three-dimensionally ordered gold nanocrystal/silica superlattice thin films synthesized via sol-gel self-assembly

被引：70

作者：

Fan, Hongyou

Wright, Adam

Gabaldon, John

Rodriguez, Adrian

Brinker, C. Jeffrey

Jiang, Ying-Bing

机构：

[1] Sandia Natl Labs, Chem Synth & Nanomat Dept, Adv Mat Lab, Albuquerque, NM 87106 USA

[2] Univ New Mexico, NSF Ctr Microengineered Mat, Dept Chem & Nucl Engn, Albuquerque, NM 87131 USA

来源：

ADVANCED FUNCTIONAL MATERIALS | 2006年 / 16卷 / 07期

关键词：

D O I：

10.1002/adfm.200500603

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanocrystals and their ordered arrays hold many important applications in fields such as catalysis, surface-enhanced Raman spectroscopy based sensors, memory storage, and electronic and optical nanodevices. Herein, a simple and general method to synthesize ordered, three-dimensional, transparent gold nanocrystal/silica superlattice thin films by self-assembly of gold nano-crystal micelles with silica or organosilsesquioxane by spin-coating is reported. The self-assembly process is conducted under acidic sol-gel conditions (ca. pH2), ensuring spin-solution homogeneity and stability and facilitating the formation of ordered and transparent gold nanocrystal/silica films. The monodisperse nanocrystals are organized within inorganic host matrices as a face-centered cubic mesostructure, and characterized by transmission electron spectroscopy and X-ray diffraction.

引用

收藏

页码：891 / 895

页数：5

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