Linearity in Optical Absorption Spectra and Gold–Silver Alloy Colloidal Particles in Epoxy Resin

Gold–silver alloy colloids were produced in epoxy resin by thermal decomposition of gold and silver complexes, and their optical absorption spectra were measured. A linear law was found for the maximal absorption wavelengths: the maximal absorption wavelength for gold–silver alloy colloids of arbitr...

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Bibliographic Details
Published in:Journal of colloid and interface science 2001-04, Vol.236 (2), p.379-381
Main Authors: Amano, Chikara, Miura, Osamu, Kuwahara, Keita, Morio, Kazuhiko
Format: Article
Language:English
Subjects:
alloy colloid
Chemistry
cluster
Colloidal gels. Colloidal sols
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
gold colloid
optical absorption
polymer
silver colloid
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Summary:Gold–silver alloy colloids were produced in epoxy resin by thermal decomposition of gold and silver complexes, and their optical absorption spectra were measured. A linear law was found for the maximal absorption wavelengths: the maximal absorption wavelength for gold–silver alloy colloids of arbitrary composition was determined from the wavelengths for pure gold and pure silver colloids and the initial concentration ratio of gold and silver complexes. The change of absorbance and absorption wavelengths with heating periods is presented.
ISSN:0021-9797
1095-7103
DOI:10.1006/jcis.2000.7404