The synthesis and mesomorphic properties of 4,4″-dialkyl-2,2′,3- and 2,2′,3′-trifluoro-1,1′∶4′,1″-terphenyls for high dielectric biaxiality ferroelectric liquid crystal mixtures

2000 ◽  
pp. 27-34 ◽  
Author(s):  
Margaret E. Glendenning ◽  
John W. Goodby ◽  
Michael Hird ◽  
Kenneth J. Toyne
Keyword(s):  
Liquid Crystal ◽  
Ferroelectric Liquid Crystal ◽  
High Dielectric ◽  
Mesomorphic Properties

scholarly journals Electro-Optical and Photo Stabilization Study of Nematic Ternary Mixture

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2283
Author(s):  
Aleksandra Kalbarczyk ◽  
Noureddine Bennis ◽  
Jakub Herman ◽  
Leszek R. Jaroszewicz ◽  
Przemysław Kula
Keyword(s):  
Liquid Crystal ◽  
Ternary Mixture ◽  
Liquid Crystal Displays ◽  
Dielectric Anisotropy ◽  
Driving Voltage ◽  
Dual Frequency ◽  
High Frequencies ◽  
High Birefringence ◽  
High Dielectric ◽  
Mesomorphic Properties

Liquid crystal materials composed of mixed nematic compounds find broad use in liquid crystal displays and photonic applications. A ternary mixture formed from three different nematic compounds shows peculiar behavior such as tunable electro-optical properties dependent on the frequency of the driving voltage. The paper presents an analysis of the response time and phase retardation of a frequency tunable nematic liquid crystal mixture (under code name 5005). This material possesses high birefringence (Δn = 0.32 at 633 nm) as well as high dielectric anisotropy (Δε = 6.3 at 100 Hz). The unique property of the 5005 mixture is frequency-controlled phase modulation, as in a dual frequency liquid crystal, while dielectric anisotropy goes to zero instead of being negative at high frequencies. For each component of the mixture, details on mesomorphic properties and their role in the formulation of the mixture are reported. The 5005 mixture was characterized by multiple investigation techniques, such as temperature dependence dielectric anisotropy, transmittance measurements image polarizing microscopy, and UV stability.

Synthesis, mesomorphic properties and crystal structure studies of a chiral ferroelectric liquid crystal series

1998 ◽  
Vol 25 (2) ◽  
pp. 207-215 ◽  
Author(s):  
H. ALLOUCHI ◽  
M. COTRAIT ◽  
M. LAGUERRE ◽  
J. C. ROUILLON ◽  
J. P. MARCEROU ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Liquid Crystal ◽  
Ferroelectric Liquid Crystal ◽  
Mesomorphic Properties

Synthesis and mesomorphic properties of a new ferroelectric liquid crystal with 2-alkoxypropionate chiral groups

1993 ◽  
Vol 148 (1) ◽  
pp. 103-110 ◽  
Author(s):  
M. Kaspar ◽  
M. Glogarová ◽  
V. Hamplová ◽  
H. Sverenyák ◽  
S. A. Pakhomov
Keyword(s):  
Liquid Crystal ◽  
Ferroelectric Liquid Crystal ◽  
Mesomorphic Properties

High dielectric behavior and memory effect in a deformed helix ferroelectric liquid crystal with an antiferroelectric phase

2007 ◽  
Vol 443 (1-3) ◽  
pp. 71-75 ◽  
Author(s):  
Amrita Mukherjee ◽  
M. Rahman ◽  
S.S. Bhattacharyya ◽  
B.K. Chaudhuri ◽  
A. Yoshizawa
Keyword(s):  
Liquid Crystal ◽  
Memory Effect ◽  
Dielectric Behavior ◽  
Ferroelectric Liquid Crystal ◽  
Antiferroelectric Phase ◽  
High Dielectric
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