Electro-optical behaviour of polymer-dispersed liquid crystals

Our investigations show that the threshold voltage V th for polymer-dispersed liquid crystals (PDLC) depends on the thickness layer of the PDLC films: V th increases with increasing thickness layer. If electrolyte is added to the polymer PDLC films with a thickness layer of 70 μm can also be switche...

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Bibliographic Details
Published inThin solid films Vol. 223; no. 1; pp. 140 - 142
Main Author Seeboth, A.
Format Journal Article
LanguageEnglish
Published Lausanne Elsevier B.V 1993
Elsevier Science
Subjects
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electrical properties of specific thin films
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Exact sciences and technology
Physics
Voltage threshold
Electrical properties
Polymer
Experimental study
Liquid crystals
Transmittance
Thin film
Absorbance
Electric field
Electrolyte
Nematic state
Optical properties
Electric field effect
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Summary:Our investigations show that the threshold voltage V th for polymer-dispersed liquid crystals (PDLC) depends on the thickness layer of the PDLC films: V th increases with increasing thickness layer. If electrolyte is added to the polymer PDLC films with a thickness layer of 70 μm can also be switched electrically. If an electric field is applied to the PDLC layer and the voltage is increased, the transmission increases too. A strong interaction at the liquid crystal-polymer interface is the reason for the equal spatial orientation of liquid crystal molecules in the separate phase before and after application of an electric field.
ISSN:0040-6090
1879-2731
DOI:10.1016/0040-6090(93)90738-B