Polarized Fluorescence of Dyes Oriented in Room Temperature Nematic Liquid Crystals

1973 ◽  
Vol 22 (3-4) ◽  
pp. 261-269 ◽  
Author(s):  
G. Baur ◽  
A. Stieb ◽  
G. Meier
Keyword(s):  
Liquid Crystals ◽  
Room Temperature ◽  
Nematic Liquid Crystals ◽  
Polarized Fluorescence

Room-Temperature Discotic Nematic Liquid Crystals

2003 ◽  
Vol 396 (1) ◽  
pp. 241-250 ◽  
Author(s):  
Sandeep Kumar ◽  
Sanjay Kumar Varshney ◽  
Diwakar Chauhan
Keyword(s):  
Liquid Crystals ◽  
Room Temperature ◽  
Nematic Liquid Crystals ◽  
Discotic Nematic Liquid Crystals

scholarly journals Spontaneous helielectric nematic liquid crystals: Electric analog to helimagnets

2021 ◽  
Vol 118 (42) ◽  
pp. e2111101118
Author(s):  
Xiuhu Zhao ◽  
Junchen Zhou ◽  
Jinxing Li ◽  
Junichi Kougo ◽  
Zhe Wan ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Nonlinear Optical ◽  
Room Temperature ◽  
Nematic Liquid Crystals ◽  
Polar Liquid ◽  
Experimental Proof ◽  
Liquid Crystal Devices ◽  
Optical Responses ◽  
Electric Analog

Recently, a type of ferroelectric nematic fluid has been discovered in liquid crystals in which the molecular polar nature at molecule level is amplified to macroscopic scales through a ferroelectric packing of rod-shaped molecules. Here, we report on the experimental proof of a polar chiral liquid matter state, dubbed helielectric nematic, stabilized by the local polar ordering coupled to the chiral helicity. This helielectric structure carries the polar vector rotating helically, analogous to the magnetic counterpart of helimagnet. The helielectric state can be retained down to room temperature and demonstrates gigantic dielectric and nonlinear optical responses. This matter state opens a new chapter for developing the diverse polar liquid crystal devices.

Niedrigschmelzende p-Alkyl-p′-alkoxy- und p-Alkylp′ -acyloxy-azobenzole / Low melting p-alkyl-p′-alkoxy- and p-alkyl-p′-acyloxy-azobenzenes

1971 ◽  
Vol 26 (6) ◽  
pp. 577-580 ◽  
Author(s):  
Ralf Steinsträsser ◽  
Ludwig Pohl
Keyword(s):  
Liquid Crystals ◽  
Liquid Crystalline ◽  
Room Temperature ◽  
Nematic Liquid Crystals ◽  
High Melting ◽  
Melting Points ◽  
New Class

More than 30 new unsymmetric disubstituted, enantiotropic nematic azobenzenes are described. In contrast to the high melting symmetric disubstituted liquid crystalline azobenzenes they partly have melting points only a little bit higher than room-temperature and nematic ranges of up to 34 °C. They represent an interesting new class of nematic liquid crystals.

scholarly journals Chromonic Nematic Liquid Crystals in a Room-Temperature Ionic Liquid

2022 ◽  
Author(s):  
Jose Rodrigo Magana ◽  
Adrià Pérez-Calm ◽  
Carlos Rodríguez-Abreu
Keyword(s):  
Ionic Liquid ◽  
Liquid Crystals ◽  
Room Temperature ◽  
Nematic Liquid Crystals ◽  
Room Temperature Ionic Liquid ◽  
Proof Of Concept

Planar multiaromatic molecules hierarchically and selectively arrange into nematic chromonic liquid crystals in the room temperature ionic liquid 2-hydroxyethylammonium formate. In a proof-of-concept, these liquid crystals were used as reaction...

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