Open AccessTransient behavior of the polarity-reversal current in a nematic liquid-crystal device
Author(s) -
HuiYu Chen,
Kai Yang,
Wei Lee
Publication year - 2004
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.12.003806
Subject(s) - liquid crystal , transient (computer programming) , polarity (international relations) , materials science , polarity reversal , optics , voltage , current (fluid) , biaxial nematic , condensed matter physics , optoelectronics , physics , chemistry , biochemistry , thermodynamics , quantum mechanics , computer science , cell , operating system
We report on observations of transient behavior of currents induced by the polarity reversal of a dc voltage applied across a nematic liquid-crystal cell. The curve of the time-evolved transient current reveals two peaks for the external voltage larger than a characteristic value. The temperature dependence of drift mobility of ion carriers implies that both the first and second peaks are caused by the director orientation in the bulk.