▎ 摘　　要

NOVELTY - Method for preparing a graphene photonic crystal film with adjustable wettability involves (a) using monodisperse nanoparticles to prepare opal-type photonic crystal films, (b) evenly infiltrating polymer precursor solution containing graphene into pores of the opal-type photonic crystal film, polymerizing, removing the opal photonic crystal structure to obtain an ordered inverse opal graphene photonic crystal film, (c) dripping an immersion liquid onto the surface of the inverse opal graphene photonic crystal film to completely infiltrate to form a liquid coating to obtain the product. USE - The method is useful for preparing a graphene photonic crystal film. ADVANTAGE - The film adjusts wettability easily, when an electrical response is applied.