FIELD: physics.
SUBSTANCE: first, a suspension of graphene with a concentration of 0.01-10 mg/ml is prepared. The resulting graphene suspension is fluorinated at a temperature of 60-80°C in a solution of hydrofluoric acid with a concentration of 1-15 vol. %, ensuring the achievement of the required degree of fluorination, the flow during fluorination of the processes of stratification and fragmentation of the particles of the suspension, reaching the lateral size and the thickness of the resulting fluorographen particles corresponding to the particles in the ink. In the fluorination process, ultrasonic treatment and/or centrifugation can also be performed. Then it is held for a sufficient time to acquire dielectric properties.
EFFECT: invention makes it possible to shorten the manufacturing time of a fluorographen suspension for 2D printing of dielectric layers up to 20 days or less.
13 cl, 1 dwg, 7 ex
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