Effects of graphene on electro-optic switching and spontaneous polarization of a ferroelectric liquid crystal

被引：50
作者：
Basu, Rajratan [1 ]
机构：
[1] US Naval Acad, Dept Phys, Soft Matter & Nanomat Lab, Annapolis, MD 21402 USA
来源：
APPLIED PHYSICS LETTERS | 2014年 / 105卷 / 11期
关键词：
CARBON NANOTUBES;
D O I：
10.1063/1.4896112
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A small quantity of graphene flakes was doped in a ferroelectric liquid crystal (FLC), and the field-induced fenoelectric electro-optic switching was found to be significantly faster in the FLC + graphene hybrid than that of the pure FLC. Further studies revealed that the suspended graphene flakes enhanced the FLC's spontaneous polarization by improving smectic-C ordering resulting from the pi-pi electron stacking, and reduced rotation viscosity by trapping some of the free ions of the FLC media. These effects coherently impacted the FLC-switching phenotnenon, enabling the FLC molecules to switch faster on reversing an external electric field. (C) 2014 ALP Publishing LLC.
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页数：5
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