▎ 摘　　要

NOVELTY - The carbon film has raw material that is formed by using graphene oxide. The electrical conductivity of the carbon film main portion is 1 to 103 per square centimeter. The base plate is dissolved into the solution. The film main portion is oriented along the surface of the base plate. The oxidation of film main portion is performed by concentrated sulfuric acid and potassium perchlorate. USE - Carbon film. ADVANTAGE - The carbon film can be prepared with simple process. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for method for preparing carbon film.