Journal
JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS
Volume 11, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1464-4258/11/2/024022
Keywords
liquid crystal; ferroelectricity; polymer stabilization; electro-optic effects
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Funding
- EPSRC [EP/D079128/1]
- EPSRC [EP/D079128/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/D079128/1] Funding Source: researchfish
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The electro-optic behaviour of polymer-stabilized polar smectic liquid crystals is studied in detail before and after photo-polymerization of a bifunctional monomer in the fluid SmA* and SmC* phases. We investigate the effect of a stabilizing, phase-separated polymer network on the electro-optic performance of smectic liquid crystals in relation to the electroclinic as well as the ferroelectric electro-optic effects. For the first time we also report time-dependent data obtained during the polymerization process, which allow the study of the dynamics of photo-polymerization in a liquid crystal host and provide evidence for how this polymerization process is accomplished and why the favourable electro-optic properties of ferroelectric liquid crystals are retained in polymer-stabilized FLCs.
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