7 September 2011 Design and synthesis of an achiral ferroelectric smectic liquid crystal
Author Affiliations +
Design and synthesis of a bent-core mesogen possessing the achiral ferroelectric SmAPF phase is reported. The design approach is based upon the discovery of Sadashiva and Reddy, et al. that bent-core mesogens possessing only one tail gave biaxial SmA phases shown to be antiferroelectric (SmAPA). The SmAPA phase shows antiferroelectric layer stacking with synclinic layer interfaces, as expected based upon typical behavior seen in most bent-core mesogens. In order to obtain the target ferroelectric phase, several tails known to allow the formation of anticlinic layer interfaces were incorporated into the basic Sadashiva/Reddy structure. These tails are thought to suppress out of layer fluctuations, thereby removing the strong entropically driven tendency for synclinic layer interfaces, and allowing formation of anticlinic layer stacking driven by a more subtle, and unknown, factor in the free energy of the system. In the event, the tricarbosilane-terminated alkoxy tail proved effective, providing the first known low molar mass SmAPF material.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Eva Korblova, Eva Korblova, David M. Walba, David M. Walba, Tao Gong, Tao Gong, Amaranatha Reddy, Amaranatha Reddy, Chenhui Zhu, Chenhui Zhu, Renfan Shao, Renfan Shao, Joseph E. Maclennan, Joseph E. Maclennan, Matthew A. Glaser, Matthew A. Glaser, Noel A. Clark, Noel A. Clark, } "Design and synthesis of an achiral ferroelectric smectic liquid crystal", Proc. SPIE 8114, Liquid Crystals XV, 81140X (7 September 2011); doi: 10.1117/12.894152; https://doi.org/10.1117/12.894152


Super-structured smectics and their application
Proceedings of SPIE (September 11 2007)
Old and new ideas in ferroelectric liquid crystal technology
Proceedings of SPIE (January 31 1998)
V-shaped SmC* switching FLC compounds
Proceedings of SPIE (June 26 2002)
Interface between the L3 (sponge) phase and a solid substrate
Proceedings of SPIE (September 22 1998)
In-situ stress measurements of sputtered multilayers
Proceedings of SPIE (August 26 2010)

Back to Top