Abstract

Electro-optic performance of a liquid-crystal (LC) system is enhanced by $\mathrm{Ti}{\mathrm{O}}_2$ nanoparticle dispersed in nematic liquid crystal (NLC). The $2.5\mathrm{V}$ threshold voltage of LC for device operation is lowered to $0.5\mathrm{V}$ through $\mathrm{Ti}{\mathrm{O}}_2$ nanoparticle mixing up to $2\mathrm{wt.}\%$. To characterize the shape and size distribution of the nanoparticles, high-resolution transmission electron microscopy is employed. Transmittance spectra for the $\mathrm{Ti}{\mathrm{O}}_2$ dispersed LC structure and nondispersed LC structure showed that transparency of the $\mathrm{Ti}{\mathrm{O}}_2$ dispersed LC is similar to that of pure liquid LC.

© 2009 Optical Society of America

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