▎ 摘　　要

NOVELTY - A conductive ink, comprises: a conductive polymer solution comprising conductive polymer dissolved in an aqueous-based media; and a mixture of carbon nanotubes and graphene oxide sheets dispersed in the conductive polymer solution, where a weight ratio of the carbon nanotubes to the graphene oxide sheets is in a range of 0.25-2.5. USE - The conductive ink and method are useful for providing a conductive coating on a substrate (claimed). ADVANTAGE - The conductive ink has the advantages of improved formulation of carbon nanotube dispersions in a conductive polymer and in a conductive polymer solution, for achieving improved levels of conductivity in articles requiring a conductive coating. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) providing a conductive coating on a substrate, which involves: applying the conductive ink to a substrate; and annealing the conductive ink on the substrate to form the conductive coating on the substrate; (2) a conductive coating, which comprises: a conductive polymer; and a mixture of graphene oxide sheets and carbon nanotubes dispersed in the conductive polymer, where a weight ratio of the carbon nanotubes to the graphene oxide sheets is in a range of 0.25-2.5, and where the conductive coating has an optical transmittance value at 550 nm of at least 75%; and (3) an article comprising a substrate having a surface, where the surface is at least partially coated with the conductive coating.