METHOD FOR PRODUCTION OF FLEXIBLE HYBRID PIEZO-MATERIAL, USING CONDUCTIVE LAYERS OF GRAPHENE PARTICLES AND SILVER NANORODS Russian patent published in 2023 - IPC C01B32/184 B82B3/00 C01G5/00 H01L41/18 B82Y30/00 B82Y40/00 

FIELD: electrical engineering; chemical industry; nanotechnology.

SUBSTANCE: invention relates to electrical engineering, chemical industry, nanotechnology; it can be used in the manufacture of touch screens, acceleration sensors, seismographs, systems for diagnostics of a state of structures, piezo-generators for disposal of mechanical energy, flexible piezo-actuators, as well as LEDs and solar cells. First, a surface of polymer polarized piezo-material is prepared by processing with oxygen, air, or argon plasma in the form of an atmospheric, quiet, or corona discharge. A suspension of silver nanorods and a suspension of graphene particles are prepared separately. To the surface of prepared polymer polarized piezo-material, either a mixed suspension containing graphene particles and silver nanorods or the suspension containing graphene particles and then the suspension containing silver nanorods are applied, wherein the suspension containing graphene particles is applied again for formation of the last layer. The specified suspensions are applied to either one or several sides of prepared polymer polarized piezo-material. A conductive layer on the specified piezo-material is obtained as a result of drying. A mask of cyanoacrylate is applied to the surface of polymer polarized piezo-material for formation of this layer in the form of electrodes. Resistance of the resulting flexible hybrid piezo-material containing conductive layers of graphene particles does not exceed 60 Ohm/sq.

EFFECT: need for processing of a surface of piezo-material with aggressive and toxic chemical agents is eliminated.

3 cl, 3 dwg, 2 tbl, 6 ex