New Journal of Chemistry, Journal Year: 2024, Volume and Issue: 48(30), P. 13566 - 13576
Published: Jan. 1, 2024
Due to their high anisotropic behavior, liquid crystals possess strong nonlinear optical properties.
Language: Английский
New Journal of Chemistry, Journal Year: 2024, Volume and Issue: 48(30), P. 13566 - 13576
Published: Jan. 1, 2024
Due to their high anisotropic behavior, liquid crystals possess strong nonlinear optical properties.
Language: Английский
ChemPlusChem, Journal Year: 2024, Volume and Issue: 89(5)
Published: March 7, 2024
Abstract The discovery of a new polar nematic phase; the ferroelectric nematic, has generated great deal excitement in field liquid crystals. To date there have been around 150 materials reported exhibiting phase, general, following three key archetypal structures with these compounds known as RM734, DIO and UUQU‐4N. In this review, relationship between molecular structure stability N F , phase will be described from chemist's perspective. This look to highlight wide variety functionalities which incorporated into how changes influence transition temperatures mesophases present. appears stabilised particularly by reducing length terminal alkyl chains present adding fluorines laterally along backbone. review introduce background before then showing range exhibit describing their structure–property relationships therefore giving an up–to–date account literature for fascinating mesophase.
Language: Английский
Citations
23Small Science, Journal Year: 2024, Volume and Issue: unknown
Published: July 3, 2024
Polar liquid crystals possess 3D orientational order coupled with unidirectional electric polarity, yielding fluid ferroelectrics. Such polar phases are generated by rod‐like molecules large dipole moments. 2,5‐Disubstituted 1,3‐dioxane is commonly employed as a motif in said systems, and herein it shown to suffer from thermal instability consequence of equatorial‐trans axial‐trans isomerism at elevated temperatures. Isosteric building blocks utilized potential replacements for the unit, doing so new examples ferroelectric systems obtained. For binary mixtures certain composition, emergence antiferroelectric phase, finding not observed either parent molecules, observed. This study also reveals critical tipping point otherwise apolar systems. These results hint possibility uncovering highly ordered liquid‐crystalline delineate distinct transition mechanisms ordering.
Language: Английский
Citations
13Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 30, 2024
Abstract The discovery of fluid states matter with spontaneous bulk polar order is appreciated as a major in the fields soft and liquid crystals. Typically, this manifests superimposed atop conventional phase structures thus far limited to orthogonal types. Here we report family materials which exhibit previously unseen state conclude smectic C phase, so term it SmC P . polarisation over two orders magnitude larger than that found ferroelectric chiral used some LCD devices. Fully atomistic molecular dynamics simulations faithfully spontaneously reproduce proposed structure associated properties; comparison experimental simulated X‐ray scattering patterns shows excellent agreement. disclosed here have significantly smaller dipole moments typical crystals such RM734 suggests role electrical polarity generating perhaps overstated, view supported by consideration other systems.
Language: Английский
Citations
6Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 20, 2024
We report on a series of materials which exhibit range nematic phases including the rare example single compound shows both enantiotropic N X and F phases.
Language: Английский
Citations
3Liquid Crystals, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 8
Published: March 19, 2025
Language: Английский
Citations
0ACS Nano, Journal Year: 2025, Volume and Issue: unknown
Published: March 26, 2025
RIKEN covers fundamental research on physics, chemistry, biology, life and medical science, information mathematical engineering. Here, we outline activities quantum materials technology that include topological correlated materials, spintronics, nanoscale structures, atomic optics, computing.
Language: Английский
Citations
0Applied Research, Journal Year: 2025, Volume and Issue: 4(3)
Published: May 19, 2025
ABSTRACT Ferroelectric nematic (N F ) liquid crystals (LCs) have garnered substantial interest due to their unique polar ordering, phase transitions, and electro‐optic (E‐O) properties, with potential applications spanning from low‐power reflective displays advanced photonics microfluidics. This review explores the multifaceted nature of N LCs comprehensively analyzes behavior, alignment, surface interactions. Notable findings include (N)‐N transition's weak first‐order nature, treatments' role in inducing order, meron‐like structures resembling ferromagnetic domains. Furthermore, highlights tunability under electric fields, offering exciting possibilities for adaptive optics, sensors, actuators. Despite these advancements, challenges remain optimizing molecular controlling defects, expanding scalability LC technologies. By addressing key experimental theoretical studies, this aims present a deeper understanding crystals' E‐O responses, revolutionize future LC‐based
Language: Английский
Citations
0ACS Omega, Journal Year: 2025, Volume and Issue: unknown
Published: May 27, 2025
Language: Английский
Citations
0Applied Physics Express, Journal Year: 2024, Volume and Issue: 17(3), P. 031001 - 031001
Published: Feb. 26, 2024
Abstract
It
is
essential
to
estimate
the
surface
polar
anchoring
energy
in
order
discuss
interfacial
orientation
of
ferroelectric
nematic
liquid
crystals.
In
this
study,
we
accurately
estimated
twist
angle
a
Language: Английский
Citations
2Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: unknown
Published: Jan. 1, 2024
We report a structure–property relationship in sulfur-based thermotropic ferroelectric nematic (N F ) materials.
Language: Английский
Citations
2