Orthoconic antiferroelectric liquid crystalline materials

Czuprynski K., Gasowska J., Tykarska M., Kula P., Sokóyl E., Piecek W., Oton J.M., Castillo M.P.L. Оптоконикальные антисегнетоэлектрические жидко-кристаллические материалы // Оптический журнал. 2005. Т.72. №5 С. 5-9.

Czuprynski K., Gasowska J., Tykarska M., Kula P., Sokóyl E., Piecek W., Oton J.M., Castillo M.P.L. Orthoconic antiferroelectric liquid crystalline materials // Journal of Optical Technology. 2005. V. 72. № 9. P. 655-658. https://doi.org/10.1364/JOT.72.000655

New synthesized LC materials based on chain fluorinated homologous ester series exhibiting high tilted angles of the synclinic and anticlinic smectic С phases to the layer surface. Their mixtures in surface stabilized geometry show an unusual huge change of optical properties after applying electric field during the transition from the antiferroelectric to the ferroelectric state. In the antiferroelectric state they are optically negative uniaxial liquid crystals with the optic axis perpendicular to the cell plates, while in the ferroelectric state become optically positive biaxial liquid crystals with optic axis parallel to the glass plates. The results of electrooptical characterization of the mixtures are presented.