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Molecular Crystals and Liquid Crystals Volume 560, 2012 - Issue 1: Proceedings of the 14th International Topical Meeting: Optics of Liquid Crystals (OLC 2011): Part II of III
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Original Articles

Influence of Fluorinated Surfactants on the Electro-Optic Switching of Near Infrared Sensitive Polymer-Dispersed Liquid Crystals

Lilit Simonyan Department of Physics, Engineering Physics and Optics; Department of Chemistry, Laval University, Center for Optics, Photonics and Laser, Pav. d’Optique-Photonique, 2375 Rue de la Terrasse, Québec, Canada, G1V 0A6
,
Vladimir Presniakov Department of Physics, Engineering Physics and Optics
,
Tigran Galstian Department of Physics, Engineering Physics and Optics
&
Anna M. Ritcey Department of Chemistry, Laval University, Center for Optics, Photonics and Laser, Pav. d’Optique-Photonique, 2375 Rue de la Terrasse, Québec, Canada, G1V 0A6
Pages 67-74 | Published online: 15 May 2012
 
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Abstract

We describe the influence of two fluorinated surfactant dopants on the electro-optical modulation of light scattering by near infrared sensitive polymer dispersed liquid crystals, based on multifunctional acrylates. The molecular configuration and droplet morphology of the obtained samples are found to be bipolar. It is shown that the addition of fluorinated surfactants to the initial mixture may reduce the voltage for the onset of switching and also may enable more efficient liquid crystal reorientation. However, the electrical short of obtained samples is prohibiting achieving complete modulation cycles.

Acknowledgment

We thank NSERC-Canada for their financial support of this work.

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