14 May 2002 Polymer-stabilized ferroelectric liquid crystals
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Abstract
Polymer-stabilized ferroelectric liquid crystal (PSFLCs) are made by photopolymerizing a small amount of reactive mesogenic monomer on a quasi-bookshelf texture of ferroelectric liquid crystals (FLCs). We observed the templated submicron-scaled polymer fibrils from the two- dimensionally ordered host. The polymer fibrils capture the orientation of the host with thin polymer fibrils interweaving the smectic layers that act as additional surfaces for controlling the reorientation of FLC molecules. T he SEM study shows the difference in morphology of the polymer fibrils depending on the polymerization conditions and FLC hosts. Improvements in electro-optical properties such as, the increase in spontaneous polarization, the fast switching at a lower applied field, and the voltage independent of switching time are achieved by PSFLCs using a mesogenic monomer and FLC with a smectic A phase. The polymer networks suppress the symmetric rotation of FLC under applied field and result in PSFLCs exhibiting the thresholdless switching behavior.
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Soonnam Lee, Soonnam Lee, S. Suresh, S. Suresh, Liang-Chy Chien, Liang-Chy Chien, } "Polymer-stabilized ferroelectric liquid crystals", Proc. SPIE 4658, Liquid Crystal Materials, Devices, and Applications VIII, (14 May 2002); doi: 10.1117/12.467450; https://doi.org/10.1117/12.467450
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