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Molecular Crystals and Liquid Crystals Volume 545, 2011 - Issue 1: Proceedings of the 23rd International Liquid Crystal Conference (ILCC 2010) Part VI of VIII
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Nanostructured Systems, Metamaterials

Dispersions of Diamond Nanoparticles in Nematic Liquid Crystal/Polymer Materials

M. Elouali Unité Matériaux et Transformations (UMET), Université de Lille 1 - Sciences et Technologies, Villeneuve d'Ascq, Cedex, France; Département de Physique, Université Djillali Liabès, Sidi Bel Abbès, Algeria
,
C. Beyens Unité Matériaux et Transformations (UMET), Université de Lille 1 - Sciences et Technologies, Villeneuve d'Ascq, Cedex, France
,
F. Z. Elouali Unité Matériaux et Transformations (UMET), Université de Lille 1 - Sciences et Technologies, Villeneuve d'Ascq, Cedex, France; Laboratoire de Recherche sur les Systèmes Biologiques et la Géomatique, Université de Mascara, Route de Mamounia, Mascara, Algeria
,
O. Yaroshchuk Institute of Physics, NASU, Kyiv, Ukraine
,
B. Abbar Département de Physique, Université Djillali Liabès, Sidi Bel Abbès, Algeria
&
U. Maschke Unité Matériaux et Transformations (UMET), Université de Lille 1 - Sciences et Technologies, Villeneuve d'Ascq, Cedex, FranceCorrespondence[email protected]
Pages 77/[1301]-84/[1308] | Published online: 30 Jun 2011
 
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Abstract

Diamond nanoparticles (DNP) were added in small quantities to low molecular weight liquid crystals (LC). These particles were also combined with monomers and cured monomer/LC mixtures to elaborate polymer-LC-NP dispersions. The influence of sample composition and irradiation conditions was studied by several experimental techniques and especially by the analysis of the electro-optical response, polarizing optical microscopy, and differential scanning calorimetry. Electro-optical characteristics of polymer-LC-NP dispersions exhibit lower transmittance values in the ON state and higher switching voltages compared to polymer/LC systems.

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