Role of specific and nonspecific intermolecular interaction in electro-optical response of doped 6CHBT nematic liquid crystal with azo dyes

2016 ◽  
Vol 221 ◽  
pp. 608-616 ◽  
Author(s):  
M.S. Zakerhamidi ◽  
S. Kiani ◽  
H. Tajalli ◽  
H. Khoshsima
Keyword(s):  
Liquid Crystal ◽  
Intermolecular Interaction ◽  
Nematic Liquid Crystal ◽  
Azo Dyes ◽  
Optical Response

Molecular dynamics in weakly polar nematic liquid crystal doped with dye

2011 ◽  
Vol 89 (6) ◽  
pp. 661-665 ◽  
Author(s):  
Satya Prakash Yadav ◽  
Kamal Kumar Pandey ◽  
Abhishek Kumar Misra ◽  
Sudhaker Dixit ◽  
Rajiv Manohar
Keyword(s):  
Molecular Dynamics ◽  
Liquid Crystal ◽  
Liquid Crystals ◽  
Intermolecular Interaction ◽  
Nematic Liquid Crystal ◽  
Molecular Orientation ◽  
Nematic Liquid Crystals ◽  
Dipole Interaction ◽  
Molecular Arrangement

Our intention in the present work is to find out the role of dye in the molecular orientation of the weakly polar nematic liquid crystal D6AOB. The doping of a dye introduces a disturbance in the molecular arrangement of the nematic liquid crystal molecules. However, this disturbance is found to be sensitive to the concentration of the dye dispersed in the nematic liquid crystal. It is found that orientation in the dyed nematic liquid crystal is less ordered than the orientation in the pure nematic liquid crystals. This behavior has been explained on the basis of intermolecular interaction, i.e., dipole–dipole interaction.

Electro-optical response of a monolayer polymer dispersed nematic liquid crystal film doped with surfactant

2022 ◽  
pp. 163-211
Author(s):  
V.A. Loiko ◽  
A.V. Konkolovich ◽  
A.A. Miskevich ◽  
M.N. Krakhalev ◽  
O.O. Prishchepa ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Optical Response ◽  
Crystal Film ◽  
Polymer Dispersed

Optical response from dual-frequency hybrid-aligned nematic liquid crystal cells

2012 ◽  
Vol 57 (5) ◽  
pp. 644-648 ◽  
Author(s):  
E. A. Konshina ◽  
D. A. Vakulin ◽  
N. L. Ivanova ◽  
E. O. Gavrish ◽  
V. N. Vasil’ev
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Optical Response ◽  
Dual Frequency ◽  
Crystal Cells

The elastic and optical properties of a bent-core thiadiazole nematic liquid crystal: the role of the bend angle

2013 ◽  
Vol 1 (13) ◽  
pp. 2416 ◽  
Author(s):  
S. Kaur ◽  
L. Tian ◽  
H. Liu ◽  
C. Greco ◽  
A. Ferrarini ◽  
...  
Keyword(s):  
Optical Properties ◽  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Bend Angle

The Role of Inertia and Dissipation in the Dynamics of the Director for a Nematic Liquid Crystal Coupled with an Electric Field

2015 ◽  
Vol 18 (1) ◽  
pp. 147-166 ◽  
Author(s):  
Peder Aursand ◽  
Johanna Ridder
Keyword(s):  
Liquid Crystal ◽  
Electric Field ◽  
Nematic Liquid Crystal ◽  
Relative Strength ◽  
Inertial Forces ◽  
Director Field ◽  
Voltage Difference ◽  
Electrostatic Equilibrium ◽  
Variational Wave

AbstractWe consider the dynamics of the director in a nematic liquid crystal when under the influence of an applied electric field. Using an energy variational approach we derive a dynamic model for the director including both dissipative and inertial forces.A numerical scheme for the model is proposed by extending a scheme for a related variational wave equation. Numerical experiments are performed studying the realignment of the director field when applying a voltage difference over the liquid crystal cell. In particular, we study how the relative strength of dissipative versus inertial forces influence the time scales of the transition between the initial configuration and the electrostatic equilibrium state.

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