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Novel ferroelectric liquid‐crystalline polymers with fast electro‐optic switching times
Author(s) -
Naciri Jawad,
Méry Stéphane,
Pfeiffer Sebastian,
Shashidhar Ranganathan
Publication year - 1994
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/1.1984929
Subject(s) - ferroelectricity , bistability , materials science , polymer , liquid crystal , liquid crystalline , polarization (electrochemistry) , phase transition , fast switching , switching time , phase (matter) , optoelectronics , condensed matter physics , composite material , organic chemistry , chemistry , voltage , physics , dielectric , quantum mechanics
— The synthesis and ferroelectric properties of several novel liquid‐crystalline polymers are presented. By manipulating the number of side‐group mesogens attached to the polysiloxane backbone, it has been possible to achieve many significant properties: large range of the ferroelectric smectic C* phase extending to sub‐ambient temperatures, spontaneous polarization values up to 300 nC/cm 2 at the lowest temperatures, and bistable electro‐optic switching times approaching 100 μs near the smectic C*‐smectic A transition temperature. These properties are attractive from the point of view of display applications.