High Birefringence and Low Crossover Frequency Dual-Frequency Liquid Crystals

The dielectric relaxation and physical properties of some single and double ester compounds were investigated. Experimental results indicate that the double-ester compound has a 3X lower dielectric relaxation frequency and larger dielectric anisotropy than the single ester, but its viscosity is also...

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Bibliographic Details
Published in:Molecular crystals and liquid crystals (Philadelphia, Pa. : 2003) Pa. : 2003), 2008-09, Vol.488 (1), p.179-189
Main Authors: Song, Qiong, Xianyu, Haiqing, Gauza, Sebastian, Wu, Shin-Tson
Format: Article
Language:English
Subjects:
dual frequency
high birefringence
liquid crystal compounds
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Summary:The dielectric relaxation and physical properties of some single and double ester compounds were investigated. Experimental results indicate that the double-ester compound has a 3X lower dielectric relaxation frequency and larger dielectric anisotropy than the single ester, but its viscosity is also higher. We have formulated three high birefringence DFLC mixtures and compared their figure-of-merit at elevated temperatures.
ISSN:1542-1406
1563-5287
1543-5318
DOI:10.1080/15421400802240573