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Optical properties of gold-containing Poly(acrylic acid) composites

Published online by Cambridge University Press:  10 February 2011

S. M. Scholz ,
G. Carrot ,
J. Hilborn ,
J. Dutta ,
J.-C. Valmalette ,
H. Hofmann  and
A. Luciani
S. M. Scholz*
Affiliation:
Powder Technology Laboratory
G. Carrot
Affiliation:
Polymer Laboratory
J. Hilborn
Affiliation:
Polymer Laboratory
J. Dutta
Affiliation:
Powder Technology Laboratory
J.-C. Valmalette
Affiliation:
Powder Technology Laboratory
H. Hofmann
Affiliation:
Powder Technology Laboratory
A. Luciani
Affiliation:
Composite Technology Laboratory Department of Materials Science, Swiss Federal Institute of Technology Lausanne, CH - 1015 Lausanne, Switzerland
*
1Corresponding author
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Abstract

There is strong interest in the research & development of the particle/polymer composite technology for functional applications. Current activities are directed towards polymer assisted synthesis of ultrafine metal or semiconductor particles in solution, with an ultimate goal to arrange the particles in a matrix in well-controlled fashion, for possible electro-optical applications. In the present work the optical properties of poly(acrylic acid) polymers containing gold chloride have been investigated. This material system permits synthesis of gold nanoparticles by the reduction of gold chloride. The polyelectrolyte initially forming upon mixture of the reagents shows a gelating behavior. In-situ reduction into gold clusters can be achieved by several ways. Rheological properties, optical absorption/extinction spectra as well as photoluminescence and photoluminescence excitation spectra will be presented and discussed. Different possible combinations of gold ligands and co-ordinations states will be considered in the discussion. Gold may be present in the form of complexes, to the polyelectrolytes, or in form of nanoparticles or larger aggregates depending on the relative concentrations of the reagents and polymer molecular weight.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 501: Symposium FF – Surface Controlled Nanoscale Materials for High-Added… , 1997 , 79
Copyright
Copyright © Materials Research Society 1998

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Footnotes

2

Display Technology Division, Liechtenstein

3

Toulon University

References

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