▎ 摘　　要

NOVELTY - The substrate has a substrate main body provided with a pyramidal silicon substrate i.e. single crystal silicon, a silver nanoparticle layer, and graphene oxide layer from bottom to top. USE - Graphene oxide/silver nanoparticle/pyramidal silicon three-dimensional Raman reinforced substrate. ADVANTAGE - The substrate has simple operation, no toxicity and pollution, high sensitivity, better stability and high homogeneity Raman enhanced signal. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a graphene oxide/silver nanoparticle/pyramidal silicon three-dimensional Raman reinforced substrate preparation method. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a graphene oxide/silver nanoparticle/pyramidal silicon three-dimensional Raman reinforced substrate.