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Information × Registration Number 0211U006040, 0109U005286 , R & D reports Title Polymer stabilized " liquid crystals-nanoparticles" composites as advanced media for information displays. popup.stage_title Head Yaroshchuk O.V., Registration Date 16-02-2011 Organization Institute of physics NASU popup.description2 Electrooptic, dielectric and structural properties of "liquid crystal (LC)-nanoparticles (NPs)" and "LC-NPs-photopolymer" based on NPs of different allotropic forms of carbon has been investigated in order to extend the functionality of LCs. For the composites based on carbon nanotubes the irreversible electrooptic response (memory effect) has been discovered and maximized. The observed irreversibility is established to be caused by stabilization of the LC alignment state realized in an electric field by the nanotube network, which is formed due to crushing of big CNT aggregates in electrohydrodynamic flows. Later on, it is shown that stabilization of LC-CNT composites with polymer network leads to stabilization of their structure and elimination of irreversibility of response to the electric field. Multiple conductivity mechanisms are established, which succeed each other with growing concentration of nanotubes. On example of diamond NPs it is shown that NPs can significantly reduce the concentration of ions in the LCs, resulting in their rectification. These results open new opportunities for improvement of LC devices. Product Description popup.authors Бідна Тетяна Василівна Ковальчук Олександр Васильович Кравчук Руслан Миколійович Томилко Сергій Валентинович Ярощук Олег Васильович popup.nrat_date 2020-04-02 Close