Investigations of the structure of a cholesteric phase with a temperature induced helix inversion and of the succeeding S*C phase in thin liquid crystal cells

Dierking, IngoGießelmann, FrankZugenmaier, PeterKuczynski, WojciechLagerwall, Sven T.Stebler, Bengt2012-06-222016-03-312012-06-222016-03-311993370695631http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-74867http://elib.uni-stuttgart.de/handle/11682/8010http://dx.doi.org/10.18419/opus-7993Investigations of 4-[(S, S)-2, 3 epoxyhexyloxy]-phenyl-4-(decyloxy)-benzoate by polarizing microscopy, the Cano-Grandjean method, optical rotation dispersion and UV-VIS spectroscopy reveal a cholesteric phase with temperature induced reversal of the helical twist. Switching time experiments in the S*C phase show that the intrinsic helix can be unwound reversibly and irreveribly by application of electric fields of different strengths.eninfo:eu-repo/semantics/openAccessFlüssigkristall , Cholesterische Phase , Ferroelektrische Phasenumwandlung540Investigations of the structure of a cholesteric phase with a temperature induced helix inversion and of the succeeding S*C phase in thin liquid crystal cellsarticle