▎ 摘　　要

NOVELTY - A graphene oxide dispersion is coated on substrate, to form graphene oxide film by Langmuir-Blodgett film-forming method. The substrate is immersed in container filled with deionized water or hot steam to form graphene oxide film on substrate. Copper phthalocyanine dispersion is coated on substrate having graphene oxide film, to form copper phthalocyanine film on graphene oxide film of substrate by Langmuir-Blodgett film-forming method, to obtain gas-sensitive film. USE - Manufacture of gas-sensitive film (claimed). DETAILED DESCRIPTION - Graphene oxide is dispersed in a dispersing agent (A), to obtain graphene oxide dispersion. The obtained dispersion is coated on substrate, to form graphene oxide film by Langmuir-Blodgett film-forming method. The substrate is immersed in container filled with deionized water or hot steam to form a graphene oxide film on substrate. Then, the graphene oxide in the film is partially reduced. Copper phthalocyanine is dispersed in a dispersing agent (B), to obtain copper phthalocyanine dispersion. Then, obtained dispersion is coated on substrate having graphene oxide film, to form copper phthalocyanine film on graphene oxide film of substrate by Langmuir-Blodgett film-forming method, to obtain gas-sensitive film.