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Proceedings Paper

Electro-optic and phase transition studies on polymer-dispersed liquid crystal films
Author(s): Doina Manaila-Maximean; Maurizio Furlani; Rodica Bena; Victor Stoian; Constantin Rosu
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Paper Abstract

We obtained polymer dispersed liquid crystal (PDLC) films using a nematic liquid crystal E7 and polymethyl methacrylate by the Solvent Induced Phase Separation method. Using the Thermally Stimulated Depolarization Current method we determined the clearing point of the pure liquid crystal and the PDLC films. The glass transition temperature of the PMMA matrix has also been determined. The result have been compared with those obtained by Differential Scanning Calorimetry. During the TSDC measurements we registered the optical transmission as a function of temperature, thus the thermal switch operation being demonstrated.

Paper Details

Date Published: 23 February 2000
PDF: 7 pages
Proc. SPIE 4068, SIOEL '99: Sixth Symposium on Optoelectronics, (23 February 2000); doi: 10.1117/12.378703
Show Author Affiliations
Doina Manaila-Maximean, Univ. Politehnica Bucharest (Romania)
Maurizio Furlani, Chalmers Univ. of Technology and Goeteborg Univ. (Sweden)
Rodica Bena, Univ. Politehnica Bucharest (Romania)
Victor Stoian, Univ. Politehnica Bucharest (Romania)
Constantin Rosu, Univ. Politehnica Bucharest (Romania)


Published in SPIE Proceedings Vol. 4068:
SIOEL '99: Sixth Symposium on Optoelectronics
Teodor Necsoiu; Maria Robu; Dan C. Dumitras, Editor(s)

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