Results 11 to 20 of about 3,038 (111)

Liquid Crystals

open access: yesCrystals, 2020
Liquid crystals were discovered by Friedrich Reinitzer in 1888 when he observed colors in cholesterol derivatives that are characteristic of highly birefringent materials [...]
Charles Rosenblatt
doaj   +1 more source

Nematic Liquid Crystals

open access: yesCrystals, 2021
The discovery of liquid crystals (LCs) is dated to the year 1888, when Friedrich Reinitzer reported his observation of the double melting points of cholesterol benzoate [...]
Małgorzata Jasiurkowska-Delaporte   +1 more
doaj   +1 more source

Nematic liquid crystal alignment on subwavelength metal gratings

open access: yesBeilstein Journal of Nanotechnology, 2018
We have studied the alignment of a nematic liquid crystal (LC) material on aluminum subwavelength nanogratings as a function of the period, p, and the slit width to period ratio, w/p.
Irina V. Kasyanova   +4 more
doaj   +1 more source

Optical Response Associated with the Orientation and Structure of Liquid Crystals with Respect to Phosphatidylcholine Concentration

open access: yesCrystals, 2021
Based on the anchoring effect due to the self-assembling behavior of the phospholipid molecules at the interface between the liquid crystal and water phases on the orientation of liquid crystals, the optical response associated with the orientation and ...
Yuqi Han   +7 more
doaj   +1 more source

Study of the vertically aligned in-plane switching liquid crystal mode in microscale periodic electric fields

open access: yesBeilstein Journal of Nanotechnology, 2018
The ongoing interest in fast liquid crystal (LC) modes stimulated by display technology and new applications has motivated us to study in detail the in-plane switching (IPS) vertically aligned (VA) mode.
Artur R. Geivandov   +3 more
doaj   +1 more source

Eliminating Ambiguities in Electrical Measurements of Advanced Liquid Crystal Materials

open access: yesCrystals, 2023
Existing and future display and non-display applications of thermotropic liquid crystals rely on the development of new mesogenic materials. Electrical measurements of such materials determine their suitability for a specific application.
Oleksandr V. Kovalchuk   +2 more
doaj   +1 more source

On the Analogy between Electrolytes and Ion-Generating Nanomaterials in Liquid Crystals

open access: yesNanomaterials, 2020
Nanomaterials in liquid crystals are a hot topic of contemporary liquid crystal research. An understanding of the possible effects of nanodopants on the properties of liquid crystals is critical for the development of novel mesogenic materials with ...
Yuriy Garbovskiy
doaj   +1 more source

Evaluating the Concentration of Ions in Liquid Crystal Cells: Hidden Factors and Useful Techniques

open access: yesProceedings, 2021
Many liquid crystal devices are driven by electric fields. Ions, typically present in molecular liquid crystal materials in minute quantities, can compromise the performance of mesogenic materials (in the simplest case, through a well-known screening ...
Yuriy Garbovskiy
doaj   +1 more source

Liquid Crystal-Tuned Planar Optics in Terahertz Range

open access: yesApplied Sciences, 2023
Recently, terahertz waves of higher frequencies compared to microwave and radio frequency have shown great potential in radar detection and high-speed wireless communication. To spatially control the wavefront of terahertz beams, various novel components,
Hongguan Yu   +4 more
doaj   +1 more source

Comparative assessment of Al2O3, CuO, and Al2O3-CuO Co-doping on the structural, optical, thermal, mechanical, and gamma-ray shielding properties of Bi2O3-B2O3-K2O glass system

open access: yesNext Materials
This study compares the impact of Al2O3, CuO, and Al2O3-CuO co-doping on the structural, optical, thermal, mechanical, and gamma (γ)-ray shielding properties of the B2O3-Bi2O3-K2O (BBK) glass system.
Abely E. Mwakuna   +3 more
doaj   +1 more source

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