IndiumV3, Chine, Analysis, bibRecord, 001A36

Comparison of the thermo- and electro-optical properties of doped and un-doped MOM based PDLCs

Identifieur interne : 001A36 ( Chine/Analysis ); précédent : 001A35; suivant : 001A37

Comparison of the thermo- and electro-optical properties of doped and un-doped MOM based PDLCs

Auteurs : RBID : Pascal:04-0156272

Descripteurs français

Pascal (Inist)
- Propriété électrooptique, Composé mésogène, Morphologie, Effet thermooptique, Cristal liquide dispersé polymère, Couche mince, Procédé fabrication, Cristal nématique, Onde carrée, Champ électrique, Matériau optique, Structure chimique, Spectrométrie absorption, Dépendance température, Dispositif expérimental, Etude expérimentale, 4270D, 4270J, 4279K.

English descriptors

KwdEn :
- Absorption spectroscopy, Chemical structure, Electric fields, Electrooptical properties, Experimental device, Experimental study, Manufacturing processes, Mesogenic compound, Morphology, Nematic crystals, Optical materials, Polymer dispersed liquid crystals, Square wave, Temperature dependence, Thermo-optical effects, Thin films.

Abstract

Experiments on the thermo- and electro-optical behavior of pure polymer dispersed liquid crystal (NOA-PDLC) film and new type of metallomesogen based PDLC (MOM-PDLC) film are presented. The NOA-PDLC film and the MOM-PDLC film consisted of the droplets of nematic LC (E7) up to a 40% weight fraction in a NOA resin matrix, respectively. The samples were prepared by putting the PDLC solutions into the Indium Tin Oxide (ITO)-coated glass cells and UV-curing process. The electro-optical properties of the NOA-PDLC films and MOM-PDLC films were studied under the conditions of an externally applied square wave electric field (2-11 V/μm) and a film thickness (30-50 μm) with an argon laser (wavelength 514 nm), respectively. The experimental results are compared for two kinds of PDLC films. The electro-optical effects showed promising switching times with a rise time of 1 ms and a decay time of 3 ms and an exceptionally high contrast ratio up to 800 for MOM-PDLC sample. These results demonstrate the validity of employing this new type of MOM-PDLC in electro-optical devices.

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Le document en format XML

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<author><name sortKey="Zhou, J" uniqKey="Zhou J">J. Zhou</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institute of Engineering Physics, Shandong University of Science and Technology</s1>
<s2>Taian 271019</s2>
<s3>CHN</s3>
<sZ>1 aut.</sZ>
</inist:fA14>
<country>République populaire de Chine</country>
<wicri:noRegion>Taian 271019</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Instituto di Cibernetica, Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34</s1>
<s2>80078 Pozzuoli Napoli</s2>
<s3>ITA</s3>
<sZ>1 aut.</sZ>
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<country>Italie</country>
<wicri:noRegion>80078 Pozzuoli Napoli</wicri:noRegion>
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</author>
<author><name sortKey="Petti, L" uniqKey="Petti L">L. Petti</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Instituto di Cibernetica, Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34</s1>
<s2>80078 Pozzuoli Napoli</s2>
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<author><name sortKey="Mormile, P" uniqKey="Mormile P">P. Mormile</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Instituto di Cibernetica, Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34</s1>
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<author><name sortKey="Roviello, A" uniqKey="Roviello A">A. Roviello</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Dipartimento di Chimica, Universita di Napoli Federico II</s1>
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<term>Experimental study</term>
<term>Manufacturing processes</term>
<term>Mesogenic compound</term>
<term>Morphology</term>
<term>Nematic crystals</term>
<term>Optical materials</term>
<term>Polymer dispersed liquid crystals</term>
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<term>Temperature dependence</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Propriété électrooptique</term>
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<term>Cristal liquide dispersé polymère</term>
<term>Couche mince</term>
<term>Procédé fabrication</term>
<term>Cristal nématique</term>
<term>Onde carrée</term>
<term>Champ électrique</term>
<term>Matériau optique</term>
<term>Structure chimique</term>
<term>Spectrométrie absorption</term>
<term>Dépendance température</term>
<term>Dispositif expérimental</term>
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<front><div type="abstract" xml:lang="en">Experiments on the thermo- and electro-optical behavior of pure polymer dispersed liquid crystal (NOA-PDLC) film and new type of metallomesogen based PDLC (MOM-PDLC) film are presented. The NOA-PDLC film and the MOM-PDLC film consisted of the droplets of nematic LC (E7) up to a 40% weight fraction in a NOA resin matrix, respectively. The samples were prepared by putting the PDLC solutions into the Indium Tin Oxide (ITO)-coated glass cells and UV-curing process. The electro-optical properties of the NOA-PDLC films and MOM-PDLC films were studied under the conditions of an externally applied square wave electric field (2-11 V/μm) and a film thickness (30-50 μm) with an argon laser (wavelength 514 nm), respectively. The experimental results are compared for two kinds of PDLC films. The electro-optical effects showed promising switching times with a rise time of 1 ms and a decay time of 3 ms and an exceptionally high contrast ratio up to 800 for MOM-PDLC sample. These results demonstrate the validity of employing this new type of MOM-PDLC in electro-optical devices.</div>
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Comparison of the thermo- and electro-optical properties of doped and un-doped MOM based PDLCs

Comparison of the thermo- and electro-optical properties of doped and un-doped MOM based PDLCs

Descripteurs français

English descriptors

Abstract

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Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

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