抄録
We report a simple approach to prepare An/polystyrene (PS) composite photonic crystals. In this approach, Au nanoparticles protected by thiol molecules were synthesized by two-phase system using dimethylamine-boran as reducing agent at low temperature. PS microstructures containing the obtained Au nanoparticles were prepared by polymerization of styrene monomer in the presence of Au nanoparticles using a silica inverse opal as template. The composites with different Au content were prepared, and their structural and optical characteristics were characterized by transmission electron microscopy (TEM) and optical absorption spectroscopy, respectively. The relationship between microstructures including particle size and volume fraction of metal phase, and optical properties has been systematically evaluated. These characterization indicate that reflection peak of the obtained composite can be controlled by the volume fraction of Au nanoparticles.
