Abstract
ABSTRACTInfluence of ferroelectric BaTiO3 particles on dielectric and electro-optic properties of liquid crystals (LC) 5CB and H37 has been investigated. It has been shown that the presence of particles decreases the clearing temperature, increases dielectric permittivity and losses, changes the Freedericksz transition voltage and switching times. A rise time of the BaTiO3-5CB colloid improved while a decay time worsened in comparison with the pure 5CB at all applied voltages. The inverse trends were observed for the H37 matrix.Experimental results are explained by appearance of local electric fields near the polarized ferroelectric particles at application of external electric field.
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