Ferroelectric liquid crystal mixture dispersed with tin oxide nanoparticles: Study of morphology, thermal, dielectric and optical properties

被引：11
作者：
Agrahari, Kaushlendra [1 ]
Vimal, Tripti [1 ]
Rastogi, Ayushi [1 ]
Pandey, Kamal Kumar [2 ]
Gupta, Sushant [3 ]
Kurp, Katarzyna [4 ]
Manohar, Rajiv [1 ]
机构：
[1] Univ Lucknow, Phys Dept, Liquid Crystal Res Lab, Lucknow 226007, Uttar Pradesh, India
[2] Govt Vivekanand PG Coll, Dept Phys, Manendragarh, CG, India
[3] Natl PG Coll, Dept Phys, Lucknow, Uttar Pradesh, India
[4] Mil Univ Technol, Inst Chem, PL-00908 Warsaw, Poland
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2019年 / 237卷
关键词：
Ferroelectric liquid crystal; Tin oxide nanoparticles; Phase transition temperature; Ac conductivity; QUANTUM-DOT; PHOTOLUMINESCENCE; COMPOSITES; DEPENDENCE; PARTICLES; CONSTANT; METAL; IONS; SIZE;
D O I：
10.1016/j.matchemphys.2019.121851
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The present study is dedicated to the use of tin oxide (SnO2) nanoparticles dispersed in a multicomponent ferroelectric liquid crystal (FLC) mixture with the aim of showing their effects on the textural, dielectric, thermal and optical properties. The influence of the dopant concentration on the various physical parameters of the FLC has been discussed. Formation of self assembled two dimensional arrays of nanoparticles has been observed in the planar aligned textures of composites which is oriented perpendicular to the rubbing direction. The Differential Scanning Calorimetry study confirms the change in phase transition temperature of all the composites. The relative permittivity, absorption strength and ac conductivity have been reduced in presence of the nanoparticles. The optical extinction of neat ferroelectric liquid crystal has been decreased after the addition of tin oxide nanoparticles. The quenching phenomenon was observed for nanoparticles dispersed ferroelectric liquid crystal.
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页数：7
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