Luminescent Core−Shell Photonic Crystals from Poly(phenylene ethynylene) Coated Silica Spheres
- 26 April 2005
- journal article
- research article
- Published by American Chemical Society (ACS) in Langmuir
- Vol. 21 (11), 5207-5211
- https://doi.org/10.1021/la046821p
Abstract
We describe the preparation and characterization of a photonic crystal filled with a luminescent conjugated polyelectrolyte, sulfonated poly(phenylene ethynylene). The conjugated polymer was coated onto the nanospheres by the layer-by-layer method and assembled directly into a fluorescent opal structure avoiding the defects associated with post-filling schemes. These structures exhibit strong angle-dependent luminescent properties. By using multiple layers, we further demonstrate control over the emissive bands of the opal.Keywords
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