Electric field induced biaxiality and the electro-optic effect in a bent-core nematic liquid crystal
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2010Access:
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Nagaraj, M., Panarin, Y.P., Manna, U., Vij, J.K., Keith, C., Tschierske, C., Electric field induced biaxiality and the electro-optic effect in a bent-core nematic liquid crystal , Applied Physics Letters, 96, 1, 2010, 011106Download Item:
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Abstract:
We report the observation of a biaxial nematic phase in a bent-core molecular system using polarizing microscopy, electro-optics, and dielectric spectroscopy, where we find that the biaxiality exists on a microscopic scale. An application of electric field induces a macroscopic biaxiality and in consequence gives rise to electro-optic switching. This electro-optic effect shows significant potential in applications for displays due to its fast high-contrast response. The observed electro-optic switching is explained in terms of the interaction of the ferroelectric clusters with the electric field.
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Science Foundation Ireland (SFI)
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http://people.tcd.ie/jvijhttp://people.tcd.ie/ypanarin
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Applied Physics Letters96
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