Reversible switching between optically isotropic and birefringent states in a bent-core liquid crystal

被引:65
作者
Jákli, A
Huang, YM
Fodor-Csorba, K
Vaida, A
Galli, G
Diele, S
Pelzl, G
机构
[1] Kent State Univ, Inst Liquid Crystal, Kent, OH 44242 USA
[2] Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
[3] Univ Pisa, Dipartimento Chim & Chim Ind, I-56126 Pisa, Italy
[4] Univ Halle Wittenberg, Inst Phys Chem, Halle An Der Saale, Germany
关键词
D O I
10.1002/adma.200305379
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The tilted smectic liquid-crystal phase of an ester-based bent-core mesogen (see Figure) is optically isotropic due to the combination of suitable tilt and opening angles of the bent cores. In electric fields, V-shaped switching between isotropic and birefringent states is observed. Both the antiferroelectric and ferroelectric states consist of optically active domains due to the twisted molecular structure.
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页码:1606 / +
页数:6
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