Super high birefringence isothiocyanato biphenyl-bistolane liquid crystals

被引:126
作者
Gauza, S [1 ]
Wen, CH
Wu, ST
Janarthanan, N
Hsu, CS
机构
[1] Univ Cent Florida, CREOL, Coll Opt & Photon, Orlando, FL 32816 USA
[2] Natl Chiao Tung Univ, Dept Appl Chem, Hsinchu 30050, Taiwan
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2004年 / 43卷 / 11A期
关键词
high birefringence; isothiocyanato bistolanes; liquid crystals; eutectic mixtures; molecular modeling;
D O I
10.1143/JJAP.43.7634
中图分类号
O59 [应用物理学];
学科分类号
摘要
We have designed, synthesized, and evaluated the physical properties of some high birefringence (An) isothiocyanato biphenyl-bistolane liquid crystals. These compounds exhibit Deltan = 0.7-0.8 at room temperature and wavelength lambda = 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. A eutectic mixture based on those compounds was formulated and its physical properties evaluated. The simulated absorption spectra agree reasonably well with the measured results.
引用
收藏
页码:7634 / 7638
页数:5
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