Abstract
We present here the electro-optic and dielectric properties of ZnO nanoparticle doped ferroelectric liquid crystal (FLC) mixtures. A small quantity of ZnO nanoparticles (0.0, 0.1, 0.3, 0.5 and 1.0wt.%) was dispersed into FLC with a thickness of 5.0±0.2μm. The enhancement in physical parameters is found to be dependent on ZnO nanoparticle concentration. The lower concentration of ZnO nanoparticles (0.1–0.3wt.%) enhances the value of spontaneous polarization and decreases for higher concentration (0.5–1.0wt.%). The fastening of response time has also been noticed in the doped sample cells up to 0.3wt.% concentration. Dielectric measurements revealed a concentration dependence effect in all sample cells. A low threshold voltage and improved contrast ratio has been noticed for 0.3wt.% concentration over other doped samples.
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