Abstract
We report on the synthesis of composites based on poly(styrene) (PS) and CdSe/ZnS quantum dots (QDs). The reduction of terminal functional group of RAFT polymerized PS to thiol group allows for a partial substitution of low molecular weight ligands at the surface of CdSe/ZnS QDs by a polymer. The combination of TEM and FTIR data results in the model of the composite formation with PS macromolecules wrapped around QDs. The photoluminescence (PL) of QDs in PS-CdSe/ZnS composites decreases with an additional embedding of Au nanoparticles (NPs). The reason of the PL drop observed is analyzed in terms of combined inner filter effects and the influence of dielectric properties of the medium surrounding Au NPs embedded in PS-CdSe/ZnS composites. The calculations of the radial distribution function of QDs regarding the position of Au NPs are carried out and compared with the experimental data.
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