▎ 摘　　要

NOVELTY - A polyimide-based composite film comprises optical-limiting material comprising organic dye, carbon black, carbon nanotube, two-dimensional graphene oxide nanosheet, two-dimensional reduced graphene oxide nanosheet, one-dimensional graphene oxide nano-ribbon, one-dimensional reduced graphene oxide nano-ribbon and zero-dimensional graphene quantum dots. USE - Polyimide-based composite film is used in laser protection application (claimed). ADVANTAGE - The polyimide-based composite film has excellent light transmittance and thermal stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of polyimide-based composite film.