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Molecular Crystals and Liquid Crystals Volume 503, 2009 - Issue 1
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Liquid Crystals

Photorefractive Effect of Photoconductive-Polymer-Stabilized Ferroelectric Liquid Crystals

Takeo Sasaki Department of Chemistry, Faculty of Science, Tokyo University of Science, Tokyo, JapanCorrespondence[email protected]
,
Hirotada Hazato Department of Chemistry, Faculty of Science, Tokyo University of Science, Tokyo, Japan
,
Atsushi Katsuragi Department of Chemistry, Faculty of Science, Tokyo University of Science, Tokyo, Japan
&
Yukihito Nakazawa Department of Chemistry, Faculty of Science, Tokyo University of Science, Tokyo, Japan
Pages 81-98 | Published online: 03 Jun 2009
 
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Abstract

The photorefractive effect of photoconductive-polymer-stabilized ferroelectric liquid crystals (FLCs) was investigated. A photoconductive acrylate monomer and an electron acceptor compound were mixed with an FLC, and the mixtures were photopolymerized in the ferroelectric phase. A photoconductive polymer network was formed in the FLC medium, and a polymer-stabilized FLC was obtained. The photorefractive effect was evaluated by a two-beam coupling experiment. A large gain coefficient was obtained in the polymer-stabilized FLCs.

Notes

a Sc* = chiral smectic C phase; SA = smectic A phase; N* = chiral nematic phase; I = isotropic phase.

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