▎ 摘　　要

NOVELTY - N-doped graphene films are produced on a substrate by (i) preparing doped polymer solution comprising alkali metal salt, polymer, and solvent; (ii) coating surface of substrate with doped polymer solution to form a coated substrate; and (iii) contacting graphene layer with the coated substrate. USE - Production of n-doped graphene films on a substrate for electronic and/or optical device, where electronic device is a flexible electronic device, preferably electrically conductive window material (claimed). ADVANTAGE - The n-doped graphene films can be characterized by a persistent and strong n-doping that is resistant to degradation. The n-doped films demonstrate high electrical conductivity and low sheet resistance without altering the optical transmission of the graphene. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for composition comprising substrate, doped polymer, and graphene.