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Proceedings Paper

Determination of polar-anchoring energy coefficient by wedge cell method
Author(s): Jerzy Kedzierski; Emilia Miszczyk; Marek Andrzej Kojdecki; Zbigniew Raszewski; Pawel Perkowski; Marek Olifierczuk
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Paper Abstract

The method for the determination of polar anchoring energy coefficient is presented. This method is based on the measurement of the threshold and saturation voltages for electrical Freedericksz transition in the wedge cell. This is a modification of the method described. The method makes use of the fact that thresholds of the Freedericksz transition may be considered as eigenvalues of the operator of the second derivative, corresponding to the boundary eigenvalue problem with different boundary conditions. The method under consideration has been applied to determine anchoring energy of the 6CHTB liquid crystal on various polyimide surfaces. Results have been compared with those obtained by other methods.

Paper Details

Date Published: 12 May 2000
PDF: 6 pages
Proc. SPIE 4147, Liquid Crystals: Chemistry, Physics, and Applications, (12 May 2000); doi: 10.1117/12.385680
Show Author Affiliations
Jerzy Kedzierski, Military Univ. of Technology (Poland)
Emilia Miszczyk, Radom Technical Univ. (Poland)
Marek Andrzej Kojdecki, Military Univ. of Technology (Poland)
Zbigniew Raszewski, Military Univ. of Technology (Poland)
Pawel Perkowski, Military Univ. of Technology (Poland)
Marek Olifierczuk, Military Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 4147:
Liquid Crystals: Chemistry, Physics, and Applications
Stanislaw J. Klosowicz; Jolanta Rutkowska; Jerzy Zielinski; Jozef Zmija, Editor(s)

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