A comparative study of nematic liquid ...
Type de document :
Article dans une revue scientifique: Article original
DOI :
URL permanente :
Titre :
A comparative study of nematic liquid crystals doped with harvested and non-harvested ferroelectric nanoparticles: phase transitions and dielectric properties
Auteur(s) :
Lin, Yaochen [Auteur]
Daoudi, A. [Auteur]
Dubois, F. [Auteur]
Blach, Jean-Francois [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
HENNINOT, Jean-François [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Kurochkin, Oleksandr [Auteur]
Grabar, A. [Auteur]
Segovia-Mera, A. [Auteur]
Legrand, Christian [Auteur]
Douali, Redouane [Auteur]
Daoudi, A. [Auteur]
Dubois, F. [Auteur]
Blach, Jean-Francois [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
HENNINOT, Jean-François [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Kurochkin, Oleksandr [Auteur]
Grabar, A. [Auteur]
Segovia-Mera, A. [Auteur]
Legrand, Christian [Auteur]
Douali, Redouane [Auteur]
Titre de la revue :
RSC Advances
Nom court de la revue :
RSC Adv.
Numéro :
7
Pagination :
35438-35444
Éditeur :
Royal Society of Chemistry (RSC)
Date de publication :
2017
Discipline(s) HAL :
Chimie/Chimie inorganique
Résumé en anglais : [en]
Harvested and non-harvested tin thiohypodiphosphate (Sn2P2S6) ferroelectric nanoparticles are used to dope the 4-n-octyl-4′-cyanobiphenyl liquid crystal (8CB). Due to their higher average spontaneous polarization, the ...
Lire la suite >Harvested and non-harvested tin thiohypodiphosphate (Sn2P2S6) ferroelectric nanoparticles are used to dope the 4-n-octyl-4′-cyanobiphenyl liquid crystal (8CB). Due to their higher average spontaneous polarization, the harvested nanoparticles have stronger interactions with the liquid crystal molecules which leads to a higher order parameter as demonstrated by the increase in phase transition temperatures. This is confirmed by the results of dielectric characterization. In the homeotropic orientation, the increase in the order parameter leads to a higher dielectric permittivity. In the planar orientation, the coupling between the spontaneous polarization of the nanoparticles and the order parameter induces a slight reorientation of the liquid crystal director from the initial planar orientation, leading to an increase in the dielectric permittivity. This effect is more important for the liquid crystal doped with harvested nanoparticles.Lire moins >
Lire la suite >Harvested and non-harvested tin thiohypodiphosphate (Sn2P2S6) ferroelectric nanoparticles are used to dope the 4-n-octyl-4′-cyanobiphenyl liquid crystal (8CB). Due to their higher average spontaneous polarization, the harvested nanoparticles have stronger interactions with the liquid crystal molecules which leads to a higher order parameter as demonstrated by the increase in phase transition temperatures. This is confirmed by the results of dielectric characterization. In the homeotropic orientation, the increase in the order parameter leads to a higher dielectric permittivity. In the planar orientation, the coupling between the spontaneous polarization of the nanoparticles and the order parameter induces a slight reorientation of the liquid crystal director from the initial planar orientation, leading to an increase in the dielectric permittivity. This effect is more important for the liquid crystal doped with harvested nanoparticles.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
ENSCL
CNRS
Centrale Lille
Univ. Artois
Université de Lille
CNRS
Centrale Lille
Univ. Artois
Université de Lille
Collections :
Équipe(s) de recherche :
Couches minces & nanomatériaux (CMNM)
Date de dépôt :
2019-09-25T14:05:39Z
2021-03-29T12:12:46Z
2021-03-29T12:12:46Z
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