Effects of graphene on electro-optic response and ion-transport in a nematic liquid crystal
Abstract
A small quantity of graphene, containing both monolayer and multilayer flakes, was doped in a nematic liquid crystal (LC), and the nematic electro-optic switching was found to be significantly faster in the LC + graphene hybrid than that of the pure LC. Additional studies revealed that the presence of graphene reduced the free ion concentration in the nematic media by ion-trapping process. The reduction of mobile ions in the LC was found to have subsequent impacts on the LC's conductivity and rotational viscosity, allowing the nematic director to respond quicker on switching the electric field on and off.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 17, 2015
- Source ID
- 10.1063/1.4908608
Entities
People
- Alfred Garvey
- Daniel Kinnamon
- Rajratan Basu
Organizations
- Office of Naval Research
- United States Naval Academy