Effect of Electro-Optical Memory in Liquid Crystals Doped with Carbon Nanotubes

摘要: The electro-optical response and the microstructure of multiwalled carbon nanotubes dispersed in nematic liquid crystals with negative dielectric anisotropy are investigated. In contrast to undoped crystals, crystal dispersions characterized by irreversible electro-optic or so-called memory effect. This effect is that light transmittance through sandwiched layer dispersion placed between two crossed polarizers considerably increases after electric field application cycle. state persisted over months our observation. caused incomplete relaxation molecules from random planar initial homeotropic off. It pointed out stabilization due network small nanotube aggregates formed disturbed electro-hydrodynamic flows. revealed efficiency electro-o...