In-Plane Switching of Chiral Nematic Liquid Crystals with Different Dielectric Anisotropies

The electro-optic response in planar-aligned chiral nematic liquid crystals in an electric field oriented perpendicular to the helical structure axis is studied as a function of the magnitude and sign of the dielectric anisotropy of liquid crystal in order to understand the mechanism of this electro...

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Bibliographic Details
Published in:Crystallography reports 2018-03, Vol.63 (2), p.222-227
Main Authors: Simdyankin, I. V., Umanskii, B. A.
Format: Article
Language:English
Subjects:
Anisotropy
Crystallography and Scattering Methods
Dielectrics
Electric fields
Liquid Crystals
Nematic crystals
Physics
Physics and Astronomy
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Summary:The electro-optic response in planar-aligned chiral nematic liquid crystals in an electric field oriented perpendicular to the helical structure axis is studied as a function of the magnitude and sign of the dielectric anisotropy of liquid crystal in order to understand the mechanism of this electro-optic effect. The main contribution to the electro-optic response is shown to be due to the interaction of the electric field with the dielectric anisotropy. The flexoelectric effect also contributes to the electro-optic response, but its magnitude is much smaller.
ISSN:1063-7745
1562-689X
DOI:10.1134/S1063774518020268