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Proceedings Paper

Electro-optical and conductive properties of polymer/liquid crystal composite film
Author(s): Doina Manaila-Maximean; Rodica Bena; Cornelia Motoc
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Paper Abstract

Polymer-dispersed liquid crystal films, using polymethyl methacrylate and nematic liquid crystal E3 were obtained. The electro-optical effects were investigate using He-Ne lasers of different powers and a.c. electric fields of different frequencies applied across the composite film. The measurements of the transmitted light intensity through the composite film were carried out without any polarizers. At low frequencies,the emergent optical signal is modulated in amplitude, doubling the frequency of the a.c. driving field. In the kHz frequency range, the decrease of the fluctuations of the transmitted light with the increase of the frequency was noticed. The conductive properties of the polymer dispersed liquid crystal composite films and the contribution of the non-linear effects to the electric conduction were determined.

Paper Details

Date Published: 1 January 1998
PDF: 3 pages
Proc. SPIE 3319, Liquid Crystals: Chemistry and Structure, (1 January 1998); doi: 10.1117/12.301305
Show Author Affiliations
Doina Manaila-Maximean, Univ. Politehnica Bucharest (Romania)
Rodica Bena, Univ. Politehnica Bucharest (Romania)
Cornelia Motoc, Univ. Politehnica Bucharest (Romania)

Published in SPIE Proceedings Vol. 3319:
Liquid Crystals: Chemistry and Structure
Marzena Tykarska; Roman S. Dabrowski; Jerzy Zielinski, Editor(s)

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