Volume 138, 2008
From the journal:

Faraday Discussions

Structures and optical properties of 4–5 nm bimetallic AgAu nanoparticles†

Z. Y. Li,*a   J. P. Wilcoxon,a   F. Yin,a   Y. Chen,a   R. E. Palmera  and  R. L. Johnstonb  

* Corresponding authors

a Nanoscale Physics Research Laboratory, School of Physics and Astronomy, University of Birmingham, Birmingham, UK
E-mail: ziyouli@nprl.ph.bham.ac.uk
Fax: +44-121-4147327
Tel: +44-121-4144593

b School of Chemistry, University of Birmingham, Birmingham, UK

Abstract

Three types of bimetallic AgAu nanoparticles, with mean size of 4–5 nm, AgcoreAushell, AucoreAgshell and alloyed AgAu, have been synthesized using an inverse micelle method. To image these small size nanoparticles, quantitative high angle annular dark field imaging using scanning transmission electron microscopy was successfully applied. Our results show that good control of nanoparticle size dispersion and composition modulation was achieved. Optical properties of the nanoparticles are correlated with direct internal structure analysis. The structural stability is discussed, based on thermodynamic considerations.

  • This article is part of the themed collection: Nanoalloys
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Article information

DOI
https://doi.org/10.1039/B708958A
Article type
Paper
Submitted
13 Jun 2007
Accepted
22 Jun 2007
First published
17 Sep 2007

Faraday Discuss., 2008,138, 363-373

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Structures and optical properties of 4–5 nm bimetallic AgAu nanoparticles

Z. Y. Li, J. P. Wilcoxon, F. Yin, Y. Chen, R. E. Palmer and R. L. Johnston, Faraday Discuss., 2008, 138, 363 DOI: 10.1039/B708958A

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