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27 February 2002 Circularly polarized emission from dyes embedded in a chiral polymer
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Due to the 1D photonic bandgap nature of cholesteric liquid crystals, strongly circularly polarized photoluminescence can be generated by embedding fluorescent guest molecules in a cholesteric host whose resonance region coincides with the emission of the chromophores. In this paper, fluorescent guest molecules are embedded in a cholesteric reactive mesogen (RM) host, which is subsequently polymerized by UV-exposure to generate a chiral polymer. We have investigated the dependency of the form-anisotropy of the dye on the emission of circularly polarized photoluminescence by comparing highly anisotropic rod like dyes with a range of dyes of different shapes.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kristina Bjorknas, Peter Raynes, and Sandra Gilmour "Circularly polarized emission from dyes embedded in a chiral polymer", Proc. SPIE 4464, Organic Light-Emitting Materials and Devices V, (27 February 2002);

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