Effects of surface-extended inorganic particles on phase transitions and luminescence properties of 5CB liquid crystal

2020 ◽  
Vol 696 (1) ◽  
pp. 55-64
Author(s):  
Tamara Bezrodna ◽  
Georgyi Klishevich ◽  
Volodymyr Melnyk ◽  
Vira Nesprava ◽  
Olexandr Roshchin ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Liquid Crystal ◽  
Luminescence Properties ◽  
Inorganic Particles ◽  
5Cb Liquid Crystal

Temperature Dependence of the Luminescence Spectra of a 5CB Liquid Crystal and its Phase Transitions

2018 ◽  
Vol 85 (5) ◽  
pp. 904-908 ◽  
Author(s):  
G. V. Klishevich ◽  
N. D. Kurmei ◽  
V. I. Melnik ◽  
A. G. Tereshchenko
Keyword(s):  
Phase Transitions ◽  
Liquid Crystal ◽  
Temperature Dependence ◽  
Luminescence Spectra ◽  
5Cb Liquid Crystal

The Effect of Inorganic Nanoparticles on the Luminescence Properties of the 5CB Liquid Crystal

2017 ◽  
Vol 84 (4) ◽  
pp. 560-566 ◽  
Author(s):  
T. V. Bezrodna ◽  
G. V. Klishevich ◽  
N. D. Curmei ◽  
V. I. Melnyk ◽  
V. V. Nesprava
Keyword(s):  
Liquid Crystal ◽  
Inorganic Nanoparticles ◽  
Luminescence Properties ◽  
5Cb Liquid Crystal

ON AN ORIENTATION TRANSITION IN NEMATIC LIQUID CRYSTALS INDUCED BY THE THICKNESS OF THE SAMPLE

1993 ◽  
Vol 07 (18) ◽  
pp. 1215-1222
Author(s):  
A. L. ALEXE-IONESCU
Keyword(s):  
Experimental Data ◽  
Phase Transitions ◽  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Tilt Angle ◽  
Critical Thickness ◽  
Large Range ◽  
Square Root ◽  
Chiral Molecules ◽  
Homeotropic Orientation

An orientation transition observed in nematic liquid crystal samples, induced by the thickness, is interpreted in a new way. By supposing that the nematic liquid crystal contains chiral impurities, it is shown that the homeotropic orientation is stable only for thicknesses smaller than a critical one, and is dependent on the concentration of the chiral molecules. At the critical thickness, the transition from the homeotropic orientation to the distorted one is characterized by a tilt angle proportional to the square root of the actual thickness minus the critical one. This trend is typical of second order phase transitions. The agreement between the theory and the experimental data is fairly good over a large range of thickness of the sample.

scholarly journals Investigation of phase transitions in liquid crystal 12BBAA using window clustering of infrared spectra

2021 ◽  
Vol 341 ◽  
pp. 117233
Author(s):  
Natalia Osiecka-Drewniak ◽  
Mirosław A. Czarnecki ◽  
Zbigniew Galewski
Keyword(s):  
Phase Transitions ◽  
Liquid Crystal ◽  
Infrared Spectra
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