scholarly journals Experimental evidence of an optical shutter in cholesteric phase of a double hydrogen bonded liquid crystal

2009 ◽  
Vol 39 (4) ◽  
Author(s):  
V.N. Vijayakumar ◽  
M.L.N. Madhu Mohan
Keyword(s):  
Liquid Crystal ◽  
Experimental Evidence ◽  
Cholesteric Phase ◽  
Optical Shutter ◽  
Double Hydrogen ◽  
Hydrogen Bonded

scholarly journals Hydrogen-bonded silica gels dispersed in a smectic liquid crystal: A random fieldXYsystem

2002 ◽  
Vol 65 (5) ◽  
Author(s):  
S. Park ◽  
R. L. Leheny ◽  
R. J. Birgeneau ◽  
J.-L. Gallani ◽  
C. W. Garland ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Silica Gels ◽  
Smectic Liquid Crystal ◽  
Hydrogen Bonded

A Columnar Liquid-Crystal Phase Formed by Hydrogen-Bonded Perylene Bisimide J-Aggregates

2017 ◽  
Vol 129 (8) ◽  
pp. 2194-2197 ◽  
Author(s):  
Stefanie Herbst ◽  
Bartolome Soberats ◽  
Pawaret Leowanawat ◽  
Matthias Lehmann ◽  
Frank Würthner
Keyword(s):  
Liquid Crystal ◽  
Crystal Phase ◽  
Liquid Crystal Phase ◽  
Perylene Bisimide ◽  
J Aggregates ◽  
Hydrogen Bonded

scholarly journals Control of the Induced Handedness of Helical Nanofilaments Employing Cholesteric Liquid Crystal Fields

Molecules ◽  
2021 ◽  
Vol 26 (19) ◽  
pp. 6055
Author(s):  
Ju-Yong Kim ◽  
Jae-Jin Lee ◽  
Jun-Sung Park ◽  
Yong-Jun Choi ◽  
Suk-Won Choi
Keyword(s):  
Liquid Crystal ◽  
Crystal Field ◽  
Driving Force ◽  
Cholesteric Liquid Crystal ◽  
Powerful Method ◽  
Cholesteric Phase ◽  
Crystal Fields

In this paper, a simple and powerful method to control the induced handedness of helical nanofilaments (HNFs) is presented. The nanofilaments are formed by achiral bent-core liquid crystal molecules employing a cholesteric liquid crystal field obtained by doping a rod-like nematogen with a chiral dopant. Homochiral helical nanofilaments are formed in the nanophase-separated helical nanofilament/cholesteric phase from a mixture with a cholesteric phase. This cholesteric phase forms at a temperature higher than the temperature at which the helical nanofilament in a bent-core molecule appears. Under such conditions, the cholesteric liquid crystal field acts as a driving force in the nucleation of HNFs, realizing a perfectly homochiral domain consisting of identical helical nanofilament handedness.

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