Abstract
We have designed, synthesized, and evaluated the physical properties
of some high birefringence (Δn) isothiocyanato phenyltolane and quaterphenyl liquid crystals. These
compounds exhibit Δn ~ 0.48-0.52 at room temperature and wavelength λ = 633 nm. Laterally substituted short
alkyl chains and fluorine atom eliminate smectic phase and lower the melting
temperature. The moderate melting temperature and very high clearing temperature
make those compounds attractive for eutectic mixture formulation. These compounds
can be used as dopants for color-sequential liquid crystal displays or eutectic
mixtures for laser beam steering.
© 2006 IEEE
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