Electrodynamics study and surface conductance of fullerenes in liquid crystal medium

Abstract

Investigation of electrodynamic parameters are interesting not only from pure scientific point of view, but they are promising parameters for optimizing the quality of electronic displays. The experiment on fullerenes-nematic liquid crystal (LC) colloid was performed in planar aligned liquid crystal cell with in-plane electric field. The super-fluorinated nematic LC mixture (MJ951160), was purchased from Merck and used as received. It has typical trifluorophenyl-2 (TFP2) structure. The fullerenes in liquid crystal were attracted in the direction of positive electrode. Different electrodynamical parameters such as zeta potential, charge, surface conductance and Dukhin number were determined only by experimentally measuring the velocity of colloidal fullerenes in liquid crystal and utilizing the theory of dielectrophoretic and electrophoretic forces.