▎ 摘　　要

NOVELTY - Preparation of silver triangular nanoparticle array/single layer graphene film composite material involves: (1) growing a single-layer graphene film on a copper foil by chemical vapor deposition method; (2) preparing a single-layer of polystyrene (PS) ball colloidal film on a glass slide; (3) transferring the single-layer PS ball colloidal film to the copper foil on which the graphene film is grown to obtain a single-layer PS ball template/graphene film/copper foil; (4) using thermal evaporation to deposit silver on the single-layer PS ball template/graphene film/copper foil, where the sample remains stationary during the deposition process; and (5) removing the PS ball template after the silver deposition. USE - The method is useful for preparing silver triangular nanoparticle array/single layer graphene film composite material (claimed). ADVANTAGE - The method provides silver triangular nanoparticle array/single layer graphene film composite material with excellent surface-enhanced Raman scattering performance, avoids the damage of the graphene, and ensures integrity and cleanliness of the composite material.