PHOTOLUMINESCENT NON-WOVEN MATERIAL AND FORMING SOLUTION FOR PRODUCTION THEREOF Russian patent published in 2022 - IPC D01F6/12 D01F1/00 B82B3/00 C09K11/06 

FIELD: physics.

SUBSTANCE: group of inventions relates to the field of materials science, optoelectronic engineering, and can be used for creating photosensors and elements of wearable electronics, exhibiting flexibility and simultaneously photoluminescent in the visible wavelength range when irradiated with UV and IR radiation. Described is a forming solution for producing a non-woven composite material, including a polymer, a solvent, and inorganic nanoparticles in the form of quantum dots. A copolymer of tetrafluoroethylene vinylidene fluoride is used as a polymer, butyl acetate with dimethyl formamide at a volumetric ratio of 1:1 are used as a solvent, and quantum dots of CsPbBr₃ halide stoichiometric perovskites dried in toluene are used as nanoparticles. The amount of nanoparticles in the forming solution is no more than 3% of the mass of the polymer, and the amount of polymer is 12 to 13% of the mass of the solvent. Also described is a non-woven composite material produced by electroforming the forming solution containing tetrafluoroethylene vinylidene fluoride as a polymer and quantum dots of CsPbBr₃ halide perovskites as nanoparticles.

EFFECT: production of a solution and use thereof to form a flexible non-woven material exhibiting photoluminescence, including two-photon, in the visible wavelength range.

2 cl, 3 dwg