▎ 摘　　要

NOVELTY - A printer ink (106) comprises a stabilized graphene powder, a solvent (S1) which can dissolve a high concentration of graphene and a solvent (S2) having a high viscosity, a high boiling point and which can dissolve graphene. The solvent (S1) has a surface tension which is used for three-dimensional printing. USE - Printer ink is used in apparatus for aerosol-based three-dimensional printing of flexible graphene electronic devices (all claimed). Uses include but are not limited to interconnects, micro-supercapacitor, thin-film-transistor, transparent conductor thin films and sensors. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) apparatus for printing of flexible graphene electronic devices, which has the printer ink, an ultrasonic atomizer (108) which is housing the printer ink and a three-dimensional (3D) printing apparatus (116). The ultrasonic atomizer produces a mist of atomized droplets of the printer ink. The three-dimensional printing apparatus uses the mist of atomized droplets for printing the flexible graphene electronic devices; and (2) three-dimensional printing of flexible graphene electronic devices, which involves producing the printer ink, generating mist of atomized particles of the printer ink and delivering mist of atomized particles of the printer ink to the 3D printing apparatus. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the apparatus. System (100) Aerosol actuator (102) Agitator (104) Printer ink (106) Ultrasonic atomizer (108) Printing apparatus (114) Gas tubes (119)