Jump to main content
Jump to site search

Issue 19, 2016
Previous Article Next Article

Matched elastic constants for a perfect helical planar state and a fast switching time in chiral nematic liquid crystals

Author affiliations

Abstract

Chiral nematic liquid crystals possess a self-assembled helical structure and exhibit unique selective reflection in visible and infrared light regions. Their optical properties can be electrically tuned. The tuning involves the unwinding and restoring of the helical structure. We carried out an experimental study on the mechanism of the restoration of the helical structure. We constructed chiral nematic liquid crystals with variable elastic constants by doping bent-dimers and studied their impact on the restoration. With matched twist and bend elastic constants, the helical structure can be restored dramatically fast from the field-induced homeotropic state. Furthermore, defects can be eliminated to produce a perfect planar state which exhibits high selective reflection.

Graphical abstract: Matched elastic constants for a perfect helical planar state and a fast switching time in chiral nematic liquid crystals

Back to tab navigation

Article information


Submitted
02 Mar 2016
Accepted
13 Apr 2016
First published
13 Apr 2016

Soft Matter, 2016,12, 4483-4488
Article type
Paper

Matched elastic constants for a perfect helical planar state and a fast switching time in chiral nematic liquid crystals

M. Yu, X. Zhou, J. Jiang, H. Yang and D. Yang, Soft Matter, 2016, 12, 4483
DOI: 10.1039/C6SM00546B

Social activity

Search articles by author

Spotlight

Advertisements