Effects of ferroelectric nanoparticles on ion transport in a liquid crystal

被引：64

作者：

Basu, Rajratan ^{[1
]}

Garvey, Alfred ^{[1
]}

机构：

[1] US Naval Acad, Soft Matter & Nanomat Lab, Dept Phys, Annapolis, MD 21402 USA

来源：

APPLIED PHYSICS LETTERS | 2014年 / 105卷 / 15期

关键词：

BATIO3; NANOPARTICLES; TRANSIENT CURRENT; ELECTROOPTIC PROPERTIES; ROTATIONAL VISCOSITY; ELECTRIC-FIELD; DISPLAYS; CELLS; GENERATION; CONDUCTION; DEVICES;

D O I：

10.1063/1.4898581

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A small quantity of BaTiO3 ferroelectric nanoparticles (FNPs) of 50 nm diameter was doped in a nematic liquid crystal (LC), and the free ion concentration was found to be significantly reduced in the LC+FNP hybrid compared to that of the pure LC. The strong electric fields, due to the permanent dipole moment of the FNPs, trapped some mobile ions, reducing the free ion concentration in the LC media. The reduction of free ions was found to have coherent impacts on the LC's conductivity, rotational viscosity, and electric field-induced nematic switching. (C) 2014 AIP Publishing LLC.

引用

页数：5

共 49 条

[11]

Bockris J. O. M., 2000, MODERN ELECTROCHEMIS, DOI DOI 10.1016/j.cattod.2012.08.013

[12]

BRIERE G, 1971, CHEM PHYS LETT, V9, P285, DOI 10.1016/0009-2614(71)80221-X

[13] Faster electro-optical response characteristics of a carbon-nanotube-nematic suspension [J].

Chen, Hui-Yu ;

Lee, Wei ;

Clark, Noel A. .

APPLIED PHYSICS LETTERS, 2007, 90 (03)

[14] Adequate measuring techniques for ions in liquid crystal layers [J].

Colpaert, C ;

Maximus, B ;

DeMeyere, A .

LIQUID CRYSTALS, 1996, 21 (01) :133-142

[15] Asymmetric Freedericksz transitions from symmetric liquid crystal cells doped with harvested ferroelectric nanoparticles [J].

Cook, G. ;

Reshetnyak, V. Yu. ;

Ziolo, R. F. ;

Basun, S. A. ;

Banerjee, P. P. ;

Evans, D. R. .

OPTICS EXPRESS, 2010, 18 (16) :17339-17345

[16] Coupled director and polarization fluctuations in suspensions of ferroelectric nanoparticles in nematic liquid crystals [J].

Copic, Martin ;

Mertelj, Alenka ;

Buchnev, Olexandr ;

Reznikov, Yuri .

PHYSICAL REVIEW E, 2007, 76 (01)

[17]

De Vleeschouwer H, 1999, MOL CRYST LIQ CRYS A, V331, P2427

[18]

De Vleeschouwer H, 2001, MOL CRYST LIQ CRYST, V360, P29, DOI 10.1080/10587250108025696

[19] Long-term ion transport in nematic liquid crystal displays [J].

De Vleeschouwer, H ;

Verschueren, A ;

Bougrioua, F ;

van Asselt, R ;

Alexander, E ;

Vermael, S ;

Neyts, K ;

Pauwels, H .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 2001, 40 (5A) :3272-3276

[20] Liquid crystal-carbon nanotube dispersions [J].

Dierking, I ;

Scalia, G ;

Morales, P .

JOURNAL OF APPLIED PHYSICS, 2005, 97 (04)

← 1 2 3 4 5 →