Mechanism of electric-field-induced segregation of additives in a liquid-crystal host.

Second and Fourth Harmonic Frequencies in Electric Field-Induced Liquid Crystal Reorientations

The second and fourth harmonics of low frequency electric field-induced liquid crystal reorientations are analyzed theoretically and confirming results observed experimentally. These transient dynamic optical responses manifest when the phase of a homogeneous cell is nearby Np or ðN 2Þp, where N is an integer. These ripples would influence the grayscales of liquid crystal devices if the driving...

Modulating Band Gap and HOCO/LUCO Energy of Boron-Nitride Nanotubes under a Uniform External Electric Field

In this study, spectroscopic properties of the single-walled boron-nitride nanotube (SWBNNT) –a semiconductor channel in molecular diodes and molecular transistors–have been investigated under field-free and various applied electric fields by first principle methods.Our analysis shows that increasing the electric field in boron-nitride nanotube (BNNT) decreases the Highest Occupied Crystal Orbi...

Effect Of Electric Field On Liquid Viscosity in Co-Axial Cylindric Pipes

Improving the electric field sensing capabilities of the long-period fiber grating coated with a liquid crystal layer.

The hybrid liquid crystal long-period fiber grating structure presented here uses the 1702 liquid crystal as a thin layer on the bare long-period fiber grating. To achieve the highest long-period fiber grating sensitivity to the liquid crystal layer presence, a UV-induced host grating, with a relatively short period of 226.8 μm, was chosen. This design makes it possible to couple light from the...

Reversible switching of liquid crystal micro-particles in a nematic liquid crystal.

Liquid crystal micro-particles are functional materials possessing optical and dielectric anisotropies originating from the arrangement of rod-like molecules within the particles. Although they can be switched by an electric field, particles dispersed in isotropic hosts usually cannot return to their original state, because there is no restoration force acting on the particles. Here, we describ...