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Proceedings Paper

Circularly polarized emission from dyes embedded in a chiral polymer
Author(s): Kristina Bjorknas; Peter Raynes; Sandra Gilmour
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Paper Abstract

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.

Paper Details

Date Published: 27 February 2002
PDF: 12 pages
Proc. SPIE 4464, Organic Light-Emitting Materials and Devices V, (27 February 2002); doi: 10.1117/12.457466
Show Author Affiliations
Kristina Bjorknas, Univ. of Oxford (United Kingdom)
Peter Raynes, Univ. of Oxford (United Kingdom)
Sandra Gilmour, Sharp Labs. of Europe Ltd. (United Kingdom)

Published in SPIE Proceedings Vol. 4464:
Organic Light-Emitting Materials and Devices V
Zakya H. Kafafi, Editor(s)

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