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Photoinduced ferroelectric parameter changes in liquid‐crystal systems containing chiral α,β‐unsaturated ketones
Author(s) -
Popova Ekaterina V.,
Fedoryako Aleksandr P.,
Pivnenko Nikolay S.,
Kutulya Lidiya A.
Publication year - 2006
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 - 10.1889/1.2235682
Subject(s) - photoisomerization , ferroelectricity , liquid crystal , materials science , polarization (electrochemistry) , photochemistry , optoelectronics , chemistry , organic chemistry , isomerization , catalysis , dielectric
— Photoinduced changes that were revealed for ferroelectric liquid‐crystalline systems with helical supra‐molecular structures induced with chiral α,β‐unsaturated ketones have been summarized. Photoinduced inversion of the spontaneous polarization sign and a concomitant increase in its absolute value and other ferroelectric parameters were observed. The E‐Z photoisomerization of the chiral compounds was determined to be responsible for the discovered effects.