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Proceedings Paper

Molecular tilt angle and order parameter of low molar mass ferroelectric liquid crystal using IR spectroscopy
Author(s): Tatiana S. Perova; Antoni Kocot; Jagdish K. Vij; Rudolf Zentel
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Paper Abstract

Fourier transform infrared spectroscopy of a ferroelectric liquid-crystalline material: 4-(3)-(S)- methyl-2-(S)-chloropentanoyloxy-4'-octyloxy-biphenyl has been investigated in the wavenumber range 450 - 4000 cm-1 for various temperatures and as a function of direct bias voltage in its SmC* phase. Samples prepared in both homeotropic and homogeneous alignments have been studied. The order parameter was calculated for several isolated IR vibrations which are characteristic of different parts and orientations of molecules. The dependence of the molecular tilt angle on direct bias voltage and temperature has similar characteristics to those obtained from electro-optic measurements.

Paper Details

Date Published: 19 January 1996
PDF: 9 pages
Proc. SPIE 2731, International Liquid Crystal Workshop on Surface Phenomena, (19 January 1996); doi: 10.1117/12.230645
Show Author Affiliations
Tatiana S. Perova, Univ. of Dublin (Ireland)
Antoni Kocot, Univ. of Dublin (Ireland)
Jagdish K. Vij, Univ. of Dublin (Ireland)
Rudolf Zentel, Univ. Mainz (Germany)

Published in SPIE Proceedings Vol. 2731:
International Liquid Crystal Workshop on Surface Phenomena
Evgenij Rumtsev; Maxim Georg Tomilin, Editor(s)

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