Thermal phase transition behaviours of the blue phase of bent-core nematogen and chiral dopant mixtures under different boundary conditions

Soft Matter ◽  
2014 ◽  
Vol 10 (41) ◽  
pp. 8224-8228 ◽  
Author(s):  
Min-Jun Gim ◽  
Gohyun Han ◽  
Suk-Won Choi ◽  
Dong Ki Yoon

We have investigated dramatic changes in the thermal phase transition of a liquid-crystalline (LC) blue phase (BP) consisting of bent-core nematogen and chiral dopants under various boundary conditions during cooling from the isotropic phase.

2020 ◽  
Vol 44 (15) ◽  
pp. 5684-5691 ◽  
Author(s):  
Shigeyuki Yamada ◽  
Akira Mitsuda ◽  
Kaoru Adachi ◽  
Mitsuo Hara ◽  
Tsutomu Konno

Light-emitting liquid-crystalline polymers showing PL in the pristine solid state can control their PL color from blue to light-blue via a thermal phase transition to LC phases, which originates from a dynamic change of aggregated structures.


2003 ◽  
Vol 125 (5) ◽  
pp. 237-241 ◽  
Author(s):  
Hitoshi Osawa ◽  
Toshiaki Iwazumi ◽  
Hiroko Tokoro ◽  
Shin-ichi Ohkoshi ◽  
Kazuhito Hashimoto ◽  
...  

Langmuir ◽  
2016 ◽  
Vol 32 (26) ◽  
pp. 6691-6700 ◽  
Author(s):  
Zhangxin Ye ◽  
Youcheng Li ◽  
Zesheng An ◽  
Peiyi Wu

1998 ◽  
Vol 41 (4) ◽  
pp. 371-376 ◽  
Author(s):  
D Ghosh ◽  
A. K Jafry ◽  
A Deb ◽  
S Sarkar ◽  
R Chattopadhyay ◽  
...  

1991 ◽  
Vol 24 (7) ◽  
pp. 1605-1607 ◽  
Author(s):  
Etsuo Kokufuta ◽  
Toyoichi Tanaka

1996 ◽  
Vol 51 (7) ◽  
pp. 843-850 ◽  
Author(s):  
Ewa Mykowska ◽  
Danuta Bauman

Abstract The spectral and electrooptical properties of some dichroic fluorescent dyes (derivatives of 3.4,9,10-perylenetetracorboxylic acid and of 3,4,9-perylenetricarboxylic acid) in isotropic solvents and nematic liquid crystals have been studied. The order parameter of the dyes in the anisotropic matrices has been determined by means of optical spectroscopy methods. Moreover, the influence of the dye addition on the nematic-isotropic phase transition temperature of the pure host has been investigated. It was found that some of the dyes studied can be utilized in guest-host liquid crystal display devices.


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