Effects of graphene on electro-optic switching and spontaneous polarization of a ferroelectric liquid crystal
Abstract
A small quantity of graphene flakes was doped in a ferroelectric liquid crystal (FLC), and the field-induced ferroelectric 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 π–π electron stacking, and reduced rotation viscosity by trapping some of the free ions of the FLC media. These effects coherently impacted the FLC-switching phenomenon, enabling the FLC molecules to switch faster on reversing an external electric field.
- Authors:
-
- Department of Physics, Soft-matter and Nanomaterials Laboratory, The United States Naval Academy, Annapolis, Maryland 21402 (United States)
- Publication Date:
- OSTI Identifier:
- 22303527
- Resource Type:
- Journal Article
- Journal Name:
- Applied Physics Letters
- Additional Journal Information:
- Journal Volume: 105; Journal Issue: 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; DOPED MATERIALS; ELECTRIC FIELDS; ELECTRO-OPTICAL EFFECTS; FERROELECTRIC MATERIALS; GRAPHENE; IONS; LIQUID CRYSTALS; POLARIZATION; SWITCHES; TRAPPING
Citation Formats
Basu, Rajratan. Effects of graphene on electro-optic switching and spontaneous polarization of a ferroelectric liquid crystal. United States: N. p., 2014.
Web. doi:10.1063/1.4896112.
Basu, Rajratan. Effects of graphene on electro-optic switching and spontaneous polarization of a ferroelectric liquid crystal. United States. https://doi.org/10.1063/1.4896112
Basu, Rajratan. 2014.
"Effects of graphene on electro-optic switching and spontaneous polarization of a ferroelectric liquid crystal". United States. https://doi.org/10.1063/1.4896112.
@article{osti_22303527,
title = {Effects of graphene on electro-optic switching and spontaneous polarization of a ferroelectric liquid crystal},
author = {Basu, Rajratan},
abstractNote = {A small quantity of graphene flakes was doped in a ferroelectric liquid crystal (FLC), and the field-induced ferroelectric 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 π–π electron stacking, and reduced rotation viscosity by trapping some of the free ions of the FLC media. These effects coherently impacted the FLC-switching phenomenon, enabling the FLC molecules to switch faster on reversing an external electric field.},
doi = {10.1063/1.4896112},
url = {https://www.osti.gov/biblio/22303527},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 11,
volume = 105,
place = {United States},
year = {Mon Sep 15 00:00:00 EDT 2014},
month = {Mon Sep 15 00:00:00 EDT 2014}
}
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