Abstract
Photoluminescence of Au(I)-dodecane thiolate (Au(I)-DDT) and its thermal reduction to metallic gold have been extensively reported in the literature. However, the incorporation of this salt to a polymeric matrix to produce photoluminescent materials or gold nanocomposites by thermal reduction is a difficult task due to the insolubility of Au(I)-DDT. In this study it is shown that a silsesquioxane with pendant dodecyl chains can be a convenient host of Au(I)-DDT. The presence of dodecyl chains in both compounds and the in situ generation of the salt in the solution of the silsesquioxane precursor enabled to obtain a uniform dispersion of Au(I)-DDT in the silsesquioxane matrix. Flexible films were generated, exhibiting characteristic photoluminescent properties before thermal treatment and a uniform dispersion of gold nanoparticles after heating at 150 °C for different periods of time.
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The financial support of Universidad Nacional de Mar del Plata, Universidad Nacional de Río Cuarto, Consejo Nacional de Investigaciones Científicas y Técnicas and Agencia Nacional de Promoción Científica y Tecnológica, Argentine, are gratefully acknowledged.
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Gómez, M.L., dell′Erba, I.E., Chesta, C.A. et al. Dispersion of gold dodecanethiolate in a silsesquioxane film with pendant dodecyl chains: from photoluminescent materials to gold nanocomposites. J Mater Sci 48, 8559–8565 (2013). https://doi.org/10.1007/s10853-013-7675-0
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DOI: https://doi.org/10.1007/s10853-013-7675-0