▎ 摘　　要

NOVELTY - Preparing large area multifunctional graphene thin film comprises ultrasonically dispersing graphite oxide in an acidic solution, then adding certain amount of conductive polymer monomer under ice-cooling, slowly adding oxidizing agent, reacting the mixture, filtering the mixture, washing the solution, drying solution in a vacuum to obtain doped conductive polymer of graphene oxide, dispersing doped conductive polymer of graphene oxide in an organic solvent, and depositing conductive polymer doped graphene oxide layer on the surface of substrate. USE - The method is useful for preparing large area multifunctional graphene thin film (claimed), which is useful in organic LED, solar battery, super capacitor electrode, flexible electrode and organic storage device. ADVANTAGE - The method is capable of simply preparing large area multifunctional graphene thin film in an eco-friendly manner with high utilization rate, high conductivity, high light transmittance, and good flexibility and stability. DETAILED DESCRIPTION - Preparing large area multifunctional graphene thin film comprises ultrasonically dispersing graphite oxide in an acidic solution, then adding certain amount of conductive polymer monomer under ice-cooling, slowly adding oxidizing agent, reacting the mixture for 4-18 hours, filtering the mixture, washing the solution, drying solution in a vacuum to obtain doped conductive polymer of graphene oxide, dispersing doped conductive polymer of graphene oxide in an organic solvent, depositing conductive polymer doped graphene oxide layer on the surface of substrate to multilayer conductive polymer doped with different graphene oxide film and then drying at a certain temperature, drying graphene oxide doped conductive polymer film with different properties, reducing the high-low temperature in inert gas or reduction agent to multilayer doped different properties of the conductive polymer hybrid graphene.