Advanced Materials

Large Electro-optic Kerr Effect in Nanostructured Chiral Liquid-Crystal Composites over a Wide Temperature Range

Authors

  • Y. Haseba,

    1. Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-Koen, Kasuga 816-8580, Japan
    2. Chisso Petrochemical Corporation, 5-1 Goikaigan, Ichihara, Chiba, 290-8551, Japan
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  • H. Kikuchi,

    1. Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-Koen, Kasuga 816-8580, Japan
    2. Solution Oriented Research for Science and Technology (SORST), Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama, 330-0012, Japan
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  • T. Nagamura,

    1. Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan
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  • T. Kajiyama

    1. Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan
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  • The authors thank Chisso Co. Ltd. for providing the nematic mixture, JC-1041-XX. HK is grateful to Precursory Research for Embryonic Science and Technology (research mentor: Prof. Toyoki Kunitake), JST for financial support. This work was partly supported by a Grant-in-Aid for Scientific Research (B) 15 350 136 from the Japan Society for the Promotion of Science.

Abstract

Optically transparent and isotropic liquid-crystalline composites are successfully prepared by in-situ photopolymerization of crosslinking monomers in the isotropic phase of chiral liquid crystals. An anomalously large electro-optical Kerr constant (K) was observed in the composite over a broad temperature range (see Figure). These composites could provide new flat-panel liquid-crystal displays with high-speed responses and without the need for a rubbing process during fabrication.

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