The Electro-Optic Response in a Series of Chiral Bi-Mesogen Low Molar Mass Organosiloxane Liquid-Crystal Materials

The electro-optic response of a series of low molar mass bi-mesogen organosiloxane materials is presented. The materials display an unusual response to the electric field. It is argued that the observed behaviour can be explained if the material has two regimes for switching depending on temperature...

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Bibliographic Details
Published in:Molecular crystals and liquid crystals (Philadelphia, Pa. : 2003) Pa. : 2003), 2011-01, Vol.546 (1), p.215/[1685]-220/[1690]
Main Authors: Carboni, C., George, A. K., Zoghaib, W. M.
Format: Article
Language:English
Subjects:
Amplitudes
Bent core molecule
bi-mesogen
Crystals
Electric fields
Electro-optics
ferroelectric
field induced phase transition
Liquid crystals
organosiloxane
smectic
Switching
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Summary:The electro-optic response of a series of low molar mass bi-mesogen organosiloxane materials is presented. The materials display an unusual response to the electric field. It is argued that the observed behaviour can be explained if the material has two regimes for switching depending on temperature and the amplitude of the applied field. In one regime the two mesogenic moieties of the molecules respond independently of each other like side pendant in polymeric materials and in the other regime the bi-mesogen molecule responds as a single unit like a bent-core molecule.
ISSN:1542-1406
1563-5287
DOI:10.1080/15421406.2011.571167