Abstract
Attributed to the superior dielectric and electro-optical properties, ferroelectric liquid crystals have a wide implementation to display industries and academic communities. In this work, we attempt to study the mesomorphic, vibrational, dielectric, and electro-optical behaviour of a semi-fluorinated chiral liquid crystal. The chemical name of the compound is (2S)-octan-2-yl-3-fluoro-4’-[4-({6-[(2,2,2-trifluoroacetyl)oxy]hexyl}oxy)phenyl]-[1,1′-biphenyl]-4-carboxylate (acronym 1F6T(2F)). The compound is identified as a smectogen exhibiting antiferroelectric, ferroelectric and orthogonal paraelectric mesophases. The compound has a lateral dipole moment of 2.63 debye, electrical bandgap of 4.21 eV, and a non-vanishing first-order static hyperpolarizability. The dielectric studies underline three different types of collective relaxation processes which are readily modelled by the modified Cole-Cole relaxation model. Employing reverse current technique, the spontaneous polarization, rotational viscosity, and response time are calculated for the compound.
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