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28 May 2012

Volume 100, Issue 22, Articles (22xxxx)

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Appl. Phys. Lett. 100, 222402 (2012); http://dx.doi.org/10.1063/1.3700809 (4 pages)

Felix Balhorn, Simon Jeni, Wolfgang Hansen, Detlef Heitmann, and Stefan Mendach
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Switching performance of a polymer-stabilized antiferroelectric liquid crystal based on bent-core molecules

B. Atorf, A. Hoischen, M. B. Ros, N. Gimeno, C. Tschierske, G. Dantlgraber, and H. Kitzerow

Appl. Phys. Lett. 100, 223301 (2012); http://dx.doi.org/10.1063/1.4722794 (4 pages)

Online Publication Date: 30 May 2012

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Mixtures of a non-reactive and a photo-reactive liquid crystal, both consisting of bent core molecules, were used to prepare polymer-stabilized antiferroelectric liquid crystal cells by in-situ photo-polymerization. The mixtures exhibit a larger temperature range of the antiferroelectric phase than the pure compounds. The polymer network improves the ability of uniform alignment and thus enhances the switching contrast. In addition, the polymer-network reduces the switching times, in particular the relaxation time from the field-induced state to the ground state.
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77.80.Fm Switching phenomena
77.84.Nh Liquids, emulsions, and suspensions; liquid crystals
82.35.-x Polymers: properties; reactions; polymerization
64.75.Cd Phase equilibria of fluid mixtures, including gases, hydrates, etc.
61.30.Vx Polymer liquid crystals
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