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Proceedings Paper

Electrical conductivity of liquid-crystalline materials; old results in light of new findings
Author(s): Aleksander B. Szymanski; Elzbieta Szwajczak; J. Michalski; Wiktor L. Szymanski
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Paper Abstract

Here is considerable literature related to the electrical conductivity of liquid-crystalline materials. However, it seems, that the electrode interfacial phenomena were not taken into account consequently. This provoked some criticism. This criticism is supported by frequency domain data. These data are indicating electrode polarization as dominant mechanics, in long period time, particularly. The data related to frequency domain and time domain were analyzed. Now, it seems, that at least in liquid-crystalline cyanobiphenyls materials, due to electrode effects, DC conductivity can be observed. However, in this case one can expect non-uniformity of electrical field in the plane parallel/sandwich/sample. The aim of this contribution is an analysis of these effects and their relations with the result obtained in the past and the critical evaluation of a previously assumed material characterization.

Paper Details

Date Published: 14 December 1999
PDF: 6 pages
Proc. SPIE 4017, Polymers and Liquid Crystals, (14 December 1999); doi: 10.1117/12.373713
Show Author Affiliations
Aleksander B. Szymanski, Technical Univ. of Rzeszow (Poland)
Elzbieta Szwajczak, Technical Univ. of Rzeszow (Poland)
J. Michalski, Technical Univ. of Rzeszow (Poland)
Wiktor L. Szymanski, NIBRELF Independent Research Institute (Poland)

Published in SPIE Proceedings Vol. 4017:
Polymers and Liquid Crystals
Andrzej Wlochowicz, Editor(s)

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