Six-layer periodic structures in antiferroelectric liquid crystals

2013 ◽  
Author(s):  
Teng Yong Tan ◽  
Lye Hock Ong ◽  
Mojca Čepič
Keyword(s):  
Liquid Crystals ◽  
Periodic Structures ◽  
Antiferroelectric Liquid Crystals

Optical Properties and Phenomenological Theory of Ferri-Ferri Phase Transitions in Antiferroelectric Liquid Crystals

1997 ◽  
Vol 7 (12) ◽  
pp. 1817-1828 ◽  
Author(s):  
P. Gisse ◽  
M. Sidir ◽  
V. L. Lorman ◽  
R. Farhi ◽  
J. Pavel ◽  
...  
Keyword(s):  
Optical Properties ◽  
Phase Transitions ◽  
Liquid Crystals ◽  
Phenomenological Theory ◽  
Antiferroelectric Liquid Crystals

Synthesis and Photochemical Switching of the Antiferroelectric Liquid Crystals Containing a Diazenediyl Group

1996 ◽  
Vol 25 (8) ◽  
pp. 583-584 ◽  
Author(s):  
Makoto Negishi ◽  
Kiyoshi Kanie ◽  
Tomiki Ikeda ◽  
Tamejiro Hiyama
Keyword(s):  
Liquid Crystals ◽  
Antiferroelectric Liquid Crystals

scholarly journals Shaping nanoparticle fingerprints at the interface of cholesteric droplets

2018 ◽  
Vol 4 (10) ◽  
pp. eaat8597 ◽  
Author(s):  
Lisa Tran ◽  
Hye-Na Kim ◽  
Ningwei Li ◽  
Shu Yang ◽  
Kathleen J. Stebe ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Periodic Structures ◽  
Water Solution ◽  
Cholesteric Liquid Crystal ◽  
Solution Ph ◽  
Surrounding Water ◽  
Particle Assembly ◽  
Interfacial Assembly ◽  
Energy Applications ◽  
Geometric Frustration

The ordering of nanoparticles into predetermined configurations is of importance to the design of advanced technologies. Here, we balance the interfacial energy of nanoparticles against the elastic energy of cholesteric liquid crystals to dynamically shape nanoparticle assemblies at a fluid interface. By adjusting the concentration of surfactant that plays the dual role of tuning the degree of nanoparticle hydrophobicity and altering the molecular anchoring of liquid crystals, we pattern nanoparticles at the interface of cholesteric liquid crystal emulsions. In this system, interfacial assembly is tempered by elastic patterns that arise from the geometric frustration of confined cholesterics. Patterns are tunable by varying both surfactant and chiral dopant concentrations. Adjusting the particle hydrophobicity more finely by regulating the surfactant concentration and solution pH further modifies the rigidity of assemblies, giving rise to surprising assembly dynamics dictated by the underlying elasticity of the cholesteric. Because particle assembly occurs at the interface with the desired structures exposed to the surrounding water solution, we demonstrate that particles can be readily cross-linked and manipulated, forming structures that retain their shape under external perturbations. This study serves as a foundation for better understanding inter-nanoparticle interactions at interfaces by tempering their assembly with elasticity and for creating materials with chemical heterogeneity and linear, periodic structures, essential for optical and energy applications.

20.4: Threshold and V-Shape Switching Orthoconic Antiferroelectric Liquid Crystals for High Contrast Display

2002 ◽  
Vol 33 (1) ◽  
pp. 770 ◽  
Author(s):  
Roman Dabrowski ◽  
Krzysztof Czupryński ◽  
Witold Drzewinski ◽  
Sebastian Gauza ◽  
Sven T. Lagerwall ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
High Contrast ◽  
Antiferroelectric Liquid Crystals

Landau-Khalatnikov dynamics of helicoidal antiferroelectric liquid crystals

1991 ◽  
Vol 122 (1) ◽  
pp. 221-228 ◽  
Author(s):  
Boštjan žekš ◽  
Robert Blinc ◽  
Mojca Čepič
Keyword(s):  
Liquid Crystals ◽  
Antiferroelectric Liquid Crystals
Sign in / Sign up

Export Citation Format

Share Document