▎ 摘　　要

NOVELTY - Preparing composite thin film comprises using graphene and metal nanoparticle composite film comprising three graphene thin film layers (1, 3, 5), and two nanoparticle thin film layers (2, 4). The graphene thin film layers and the metal nanoparticle thin film layers form the graphite and metal nanoparticle composite thin film in mutual alternation and overlying, and the thin film constructs a whole with the substrate material (6), as the molecule Raman signal detection basement or the electrode of the transparent and synergistic solar battery. USE - Method for preparing graphite and metal nanoparticle composite thin film used as molecule Raman signal detection basement or electrode of transparent and synergistic solar battery. ADVANTAGE - The method can prepare composite thin film having transparency, electric conduction, and surface plasma enhancement. DESCRIPTION OF DRAWING(S) - The drawing is a schematic diagram of the method for preparing graphite and metal nanoparticle composite thin film. Graphene thin film layers (1, 3, 5) Nanoparticle thin film layers (2, 4) Substrate material (6)