Electro-Optical Study of Fluorescent Dye-Doped Ferroelectric Liquid Crystal

The present paper reports the electro-optical behavior of a pure and fluorescent dye-doped ferroelectric liquid crystal (FLC) system. Different material parameters, such as spontaneous polarization and optical response time, have been analyzed by electro-optical study. The temperature dependence of these parameters have been discussed for the pure and the fluorescent dye-doped systems. The spontaneous polarization and optical response time have also been found to change strongly by the variation of concentration of the fluorescent dye into the pure FLC. In addition to these parameters, the present paper also reports the temperature dependence of the effective dielectric permittivity for the pure and fluorescent dye-doped FLC systems. The value of spontaneous polarization has improved after doping of fluorescent dye suggesting that fluorescent dye is beneficial for this FLC material.