Dielectric behaviour of the composite system: multiwall carbon nanotubes dispersed in ferroelectric liquid crystalline material

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F11%3A00365363" target="_blank" >RIV/68378271:_____/11:00365363 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1080/01411594.2011.558300" target="_blank" >http://dx.doi.org/10.1080/01411594.2011.558300</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/01411594.2011.558300" target="_blank" >10.1080/01411594.2011.558300</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dielectric behaviour of the composite system: multiwall carbon nanotubes dispersed in ferroelectric liquid crystalline material

Popis výsledku v původním jazyce

Ferroelectric liquid crystal - multiwall carbon nanotube (FLC-MWCNT) composite systems have been prepared by doping by MWCNT (with concentration x= 0, 0.01, 0.03, 0.10) of the liquid crystal matrix. Mesomorphic and dielectric behaviour of pure and composite systems have been studied in order to understand the effect of anisotropic impurity (MWCNTs) near the N*-SmC* and SmC*-Cr phase transitions. Thermo-optical studies inferring no significant change in the presence of MWCNTs. Small shift of 5 K in the clearing point has been observed for all the composite systems. Dielectric measurements reveal that the MWCNTs influenced the permittivity: composite systems show the increase in the permittivity at higher MWCNTs concentration. For pure FLC and compositesystems relaxation time, relaxation frequency and dielectric strength have been evaluated and discussed. Influence of MWCNTs concentration on conductivity of composite systems has been also established.

Název v anglickém jazyce

Dielectric behaviour of the composite system: multiwall carbon nanotubes dispersed in ferroelectric liquid crystalline material

Popis výsledku anglicky

Ferroelectric liquid crystal - multiwall carbon nanotube (FLC-MWCNT) composite systems have been prepared by doping by MWCNT (with concentration x= 0, 0.01, 0.03, 0.10) of the liquid crystal matrix. Mesomorphic and dielectric behaviour of pure and composite systems have been studied in order to understand the effect of anisotropic impurity (MWCNTs) near the N*-SmC* and SmC*-Cr phase transitions. Thermo-optical studies inferring no significant change in the presence of MWCNTs. Small shift of 5 K in the clearing point has been observed for all the composite systems. Dielectric measurements reveal that the MWCNTs influenced the permittivity: composite systems show the increase in the permittivity at higher MWCNTs concentration. For pure FLC and compositesystems relaxation time, relaxation frequency and dielectric strength have been evaluated and discussed. Influence of MWCNTs concentration on conductivity of composite systems has been also established.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

—

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Phase Transitions

ISSN

0141-1594

e-ISSN

—

Svazek periodika

84

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

850-857

Kód UT WoS článku

000299704600017

EID výsledku v databázi Scopus

—