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

Z. Y. Li; J. P. Wilcoxon; F. Yin; Y. Chen; R. E. Palmer; R. L. Johnston

doi:10.1039/b708958a

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

Z. Y. Li, J. P. Wilcoxon, F. Yin, Y. Chen, R. E. Palmer, R. L. Johnston

Research output: Contribution to journal › Article › peer-review

85 Citations (Scopus)

Abstract

Three types of bimetallic AgAu nanoparticles, with mean size of 4-5 nm, Ag(core)Au(shell), Au(core)Ag(shell) 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.

Original language	English
Pages (from-to)	363-73
Number of pages	11
Journal	Faraday Discussions
Volume	138
DOIs	https://doi.org/10.1039/b708958a
Publication status	Published - 17 Sept 2007

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10.1039/b708958a

http://www.rsc.org/publishing/journals/FD/article.asp?doi=b708958a

Structures and Stabilities of Nanoscale Bimetallic Clusters
Li, Z. (Principal Investigator)
Engineering & Physical Science Research Council
7/06/06 → 6/12/09
Project: Research Councils

Cite this

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title = "Structures and optical properties of 4–5 nm bimetallic AgAu nanoparticles",

abstract = "Three types of bimetallic AgAu nanoparticles, with mean size of 4-5 nm, Ag(core)Au(shell), Au(core)Ag(shell) 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.",

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AU - Palmer, R. E.

AU - Johnston, R. L.

PY - 2007/9/17

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N2 - Three types of bimetallic AgAu nanoparticles, with mean size of 4-5 nm, Ag(core)Au(shell), Au(core)Ag(shell) 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.

AB - Three types of bimetallic AgAu nanoparticles, with mean size of 4-5 nm, Ag(core)Au(shell), Au(core)Ag(shell) 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.

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

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Structures and Stabilities of Nanoscale Bimetallic Clusters

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