Self-Assembly of Ordered, Robust, Three-Dimensional Gold Nanocrystal/Silica Arrays-Reference-Cited by-同舟云学术

Self-Assembly of Ordered, Robust, Three-Dimensional Gold Nanocrystal/Silica Arrays

Published:2004-04-23 Issue:5670 Volume:304 Page:567-571
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Fan Hongyou¹²³⁴,Yang Kai¹²³⁴,Boye Daniel M.¹²³⁴,Sigmon Thomas¹²³⁴,Malloy Kevin J.¹²³⁴,Xu Huifang¹²³⁴,López Gabriel P.¹²³⁴,Brinker C. Jeffrey¹²³⁴

Affiliation:

1. Sandia National Laboratories, Chemical Synthesis and Nanomaterials Department, Advanced Materials Laboratory, 1001 University Boulevard SE, Albuquerque, NM 87106, USA.

2. The University of New Mexico/NSF Center for Micro-Engineered Materials, Department of Chemical and Nuclear Engineering, Albuquerque, NM 87131, USA.

3. Center for High Technology Materials, Albuquerque, NM 87131, USA.

4. Physics Department, Davidson College, Davidson, NC 28035, USA.

Abstract

We report the synthesis of a new nanocrystal (NC) mesophase through self-assembly of water-soluble NC micelles with soluble silica. The mesophase comprises gold nanocrystals arranged within a silica matrix in a face-centered cubic lattice with cell dimensions that are adjustable through control of the nanocrystal diameter and/or the alkane chain lengths of the primary alkanethiol stabilizing ligands or the surrounding secondary surfactants. Under kinetically controlled silica polymerization conditions, evaporation drives self-assembly of NC micelles into ordered NC/silica thin-film mesophases during spin coating. The intermediate NC micelles are water soluble and of interest for biolabeling. Initial experiments on a metal-insulator-metal capacitor fabricated with an ordered three-dimensional gold nanocrystal/silica array as the “insulator” demonstrated collective Coulomb blockade behavior below 100 kelvin and established the current-voltage scaling relationship for a well-defined three-dimensional array of Coulomb islands.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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