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.

引用

页数：7

共 55 条

[31] Kinetic analysis of image sticking with adsorption and desorption of ions to a surface of an alignment layer
Mizusaki, Masanobu
Miyashita, Tetsuya
Uchida, Tatsuo
[J]. JOURNAL OF APPLIED PHYSICS, 2012, 112 (04)
[32] Charge injection and generation in nematic liquid crystal cells
Murakami, S
Naito, H
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 1997, 36 (02): : 773 - 776
[33] CdTe quantum dot dispersed ferroelectric liquid crystal: Transient memory with faster optical response and quenching of photoluminescence
Pandey, Shivani
Singh, Dharmendra Pratap
Agrahari, Kaushlendra
Srivastava, Atul
Czerwinski, Michal
Kumar, Sandeep
Manohar, Rajiv
[J]. JOURNAL OF MOLECULAR LIQUIDS, 2017, 237 : 71 - 80
[34] How interdisciplinary is nanotechnology?
Porter, Alan L.
Youtie, Jan
[J]. JOURNAL OF NANOPARTICLE RESEARCH, 2009, 11 (05) : 1023 - 1041
[35] Memory effect in weakly anchored surfaces of deformed helix ferroelectric liquid crystals
Prakash, J.
Choudhary, A.
Kaur, S.
Mehta, D. S.
Biradar, A. M.
[J]. PHYSICAL REVIEW E, 2008, 78 (02):
[36] Impact of nanoscale particles and carbon nanotubes on current and future generations of liquid crystal displays
Qi, Hao
Hegmann, Torsten
[J]. JOURNAL OF MATERIALS CHEMISTRY, 2008, 18 (28) : 3288 - 3294
[37] Study of an interesting physical mechanism of memory effect in nematic liquid crystal dispersed with quantum dots
Rastogi, Ayushi
Agrahari, Kaushlendra
Pathak, Govind
Srivastava, Atul
Herman, Jakub
Manohar, Rajiv
[J]. LIQUID CRYSTALS, 2019, 46 (05) : 725 - 735
[38] High dielectric constant gate oxides for metal oxide Si transistors
Robertson, J
[J]. REPORTS ON PROGRESS IN PHYSICS, 2006, 69 (02) : 327 - 396
[39] Rodriguez J.A., 2007, SYNTHESIS PROPERTIES
[40] Preparation and photophysical properties of soft-nano composites comprising guest anatase TiO2 nanoparticle and host hekates mesogens
Singh, D. P.
Agrahari, K.
Achalkumar, A. S.
Yelamaggad, C., V
Manohar, R.
Depriester, M.
[J]. JOURNAL OF LUMINESCENCE, 2019, 205 : 304 - 309

← 1 2 3 4 5 6 →