Electrically Tunable Color by Using Mixtures of Bent-Core and Rod-Shaped Molecules

Authors

  • Geetha G. Nair,

    1. Liquid Crystal Institute and Chemical Physics Interdisciplinary Program Kent State University Kent, OH 44242 (USA)
    2. Centre for Liquid Crystal Research P.O. Box 1329, Bangalore, 560 0123 (India)
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  • Christopher A. Bailey,

    1. Liquid Crystal Institute and Chemical Physics Interdisciplinary Program Kent State University Kent, OH 44242 (USA)
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  • Stefanie Taushanoff,

    1. Liquid Crystal Institute and Chemical Physics Interdisciplinary Program Kent State University Kent, OH 44242 (USA)
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  • Katalin Fodor-Csorba,

    1. Research Institute for Solid State Physics and Optics of the Hungarian Academy of Sciences 1525, Budapest, P.O. Box 49 (Hungary)
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  • Aniko Vajda,

    1. Research Institute for Solid State Physics and Optics of the Hungarian Academy of Sciences 1525, Budapest, P.O. Box 49 (Hungary)
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  • Zoltán Varga,

    1. Department of Physical Chemistry Budapest University of Technology and Economics Budapest (Hungary)
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  • Attila Bóta,

    1. Department of Physical Chemistry Budapest University of Technology and Economics Budapest (Hungary)
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  • Antal Jákli

    Corresponding author
    1. Liquid Crystal Institute and Chemical Physics Interdisciplinary Program Kent State University Kent, OH 44242 (USA)
    • Liquid Crystal Institute and Chemical Physics Interdisciplinary Program Kent State University Kent, OH 44242 (USA).
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  • The work was partially supported by DMR-0606160, Hungarian Research Grant OTKA-K-61075, and by Samsung Electronics. We thank Julie Kim and Dr. Quan Li at the Synthetic Facility of the Liquid Crystal Institute of Kent State University for resynthesizing ClPbis10BB, and with Prof. P. Bos for discussions. Supporting Information is available online from Wiley InterScience or from the authors.

Abstract

original image

The voltage dependence of the effective birefringence with corresponding textures for a 1:1 mixture of bent-core and rod-shaped molecules measured in a 5 µm film with planar alignment coating is measured (see figure). The data are fitted assuming rotation of the second director around the main director as illustrated in the lower part. Rectangles indicate the tilt-plane of the bent-core and rod-shape molecules.

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