Reversible Switching Between Optically Isotropic and Birefringent States in a Bent-Core Liquid Crystal

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 antifer...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2003-10, Vol.15 (19), p.1606-1610
Main Authors: Jákli, A., Huang, Y.-M., Fodor-Csorba, K., Vajda, A., Galli, G., Diele, S., Pelzl, G.
Format: Article
Language:English
Subjects:
Birefringence
Liquid crystals (LCs)
Optically active materials
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Summary: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.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200305379