Issue 5, 2003
From the journal:

Journal of Materials Chemistry

Dendrimer-controlled one-pot synthesis of gold nanoparticles with a bimodal size distribution and their self-assembly in the solid state

Andreas Taubert,†*a   Uwe-Martin Wiesler‡a  and  Klaus Müllena  

* Corresponding authors

a Max-Planck-Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany

Abstract

Gold nanoparticles have been precipitated in the presence of a stiff polyphenylene dendrimer template with 16 thiomethyl groups on the outside. Powder X-ray diffraction analysis shows an average particle size of ∼3.7 nm; surprisingly, transmission electron microscopy (TEM) reveals a bimodal particle size distribution. Most of the small particles are single crystals and the large ones have multiple crystalline domains, as observed by high resolution TEM. The particles aggregate in the solid state due to the cross-linking ability of the dendrimer. They are reversibly soluble in chloroform and toluene for extended periods of time, and can be solution cast onto flat substrates. A strong plasmon band at 560 nm and a shoulder at ∼370 nm are observed in the UV/Vis spectrum of the material.

Graphical abstract: Dendrimer-controlled one-pot synthesis of gold nanoparticles with a bimodal size distribution and their self-assembly in the solid state

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Article information

DOI
https://doi.org/10.1039/B207895C
Article type
Paper
Submitted
12 Aug 2002
Accepted
21 Feb 2003
First published
10 Mar 2003

J. Mater. Chem., 2003,13, 1090-1093

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Dendrimer-controlled one-pot synthesis of gold nanoparticles with a bimodal size distribution and their self-assembly in the solid state

A. Taubert, U. Wiesler and K. Müllen, J. Mater. Chem., 2003, 13, 1090 DOI: 10.1039/B207895C

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