▎ 摘　　要

NOVELTY - Raman reinforced substrate based on nanocrystalline graphene comprises substrate is a composite substrate formed by placing nanocrystalline graphene on the surface of the base, and the number of nanocrystalline graphene layers is 1-10 and the domain size is 1-100 nanometer. USE - Raman reinforced substrate based on nanocrystalline graphene. ADVANTAGE - The raman reinforced substrate based on nanocrystalline graphene is simple, environment-friendly and cost-effective, has high sensitivity, small molecule detection, surface science research, biomolecule detection, food safety. DETAILED DESCRIPTION - An INDEPENDENT CLAIM s included for a method for preparing a Raman reinforced substrate based on nanocrystalline graphene, which involves: (A) cleaning the substrate to remove impurities and organic matter on the surface of the substrate; (B) placing nanocrystalline graphene on the surface of the substrate to obtain a nanocrystalline graphene Raman enhanced substrate; and (C) immersing the nanocrystalline graphene Raman reinforced substrate into the solution that needs to detect molecules for a period of time, taking out, and blow drying in a mild protective gas Raman characterize the sample.