Photochemical color switching behavior of induced cholesteric liquid crystals for polarizer free liquid crystalline devices

1998 ◽  
Vol 73 (15) ◽  
pp. 2081-2083 ◽  
Author(s):  
Seiji Kurihara ◽  
Tomoko Kanda ◽  
Takashi Nagase ◽  
Takamasa Nonaka
Keyword(s):  
Liquid Crystals ◽  
Liquid Crystalline ◽  
Switching Behavior ◽  
Cholesteric Liquid Crystals ◽  
Color Switching

Switching of ionic conductivities in columnar liquid-crystalline anilinium salts: effects of alkyl chains, ammonium cations and counter anions on thermal properties and switching temperatures

2019 ◽  
Vol 4 (2) ◽  
pp. 342-347 ◽  
Author(s):  
Daniel Kuo ◽  
Bartolome Soberats ◽  
K. R. S. Kumar ◽  
Masafumi Yoshio ◽  
Takahiro Ichikawa ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Liquid Crystals ◽  
Liquid Crystalline ◽  
Ionic Conductivities ◽  
Molecular Structures ◽  
Switching Behavior ◽  
Alkyl Chains ◽  
Ion Conductivities ◽  
Thermal Switching

Effects of molecular structures on the thermal switching behavior of ion conductivities for columnar anilinium liquid crystals have been examined.

Thermal control of transmission property by phase transition in cholesteric liquid crystals

2018 ◽  
Vol 6 (24) ◽  
pp. 6520-6525 ◽  
Author(s):  
Seung-Won Oh ◽  
Sang-Hyeok Kim ◽  
Tae-Hoon Yoon
Keyword(s):  
Phase Transition ◽  
Liquid Crystals ◽  
Thermal Control ◽  
Transmission Property ◽  
Cholesteric Liquid Crystals ◽  
Color Switching ◽  
External Stimuli

Cholesteric liquid crystals (LCs) responsive to external stimuli, such as temperature or light, can be used for color switching or tuning through the change in the cholesteric pitch.

scholarly journals Synthesis and Characterization of Novel Bio-Chiral Dopants Obtained from Bio-Betulin Produced by a Fermentation Process

Crystals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 785
Author(s):  
Veridiana G. Guimarães ◽  
Anastasiia Svanidze ◽  
Tianyi Guo ◽  
Pawan Nepal ◽  
Robert J. Twieg ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Natural Product ◽  
Fermentation Process ◽  
Synthesis And Characterization ◽  
Cholesteric Liquid Crystals ◽  
And Performance ◽  
Chiral Dopants

Cholesteric liquid crystals are frequently produced by the addition of chiral dopants to achiral nematic hosts. We report here the synthesis and performance of chiral dopants obtained from bio-betulin produced by a fermentation process. An important aspect of this work is to point out that the fermentation process used to obtain the starting materials is much easier and cheaper when carried out in large volumes than isolating it from the natural product. The performance of the dopants obtained from bio-betulin is indistinguishable from those obtained from commercially available synthetic betulin.

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