▎ 摘　　要

NOVELTY - Method for determining number of graphene layers using Raman spectroscopy involves determining relative intensity of substrate-bound Raman-active mode in graphene-covered region to intensity of the substrate-bound Raman-active mode in graphene-free region in the backscatter mode with a visible light of 500-750 nm, and determining the number of graphene layers (n) using the equation. USE - Method for determining number of graphene layers. DETAILED DESCRIPTION - Method for determining number of graphene layers using Raman spectroscopy involves measuring relative intensity of substrate-bound Raman-active mode in graphene-covered region to intensity of the substrate-bound Raman-active mode in graphene-free region in the backscatter mode with a visible light of 500-750 nm, and determining the number of graphene layers (n) using the equation: I=(1-(0.023± 0.001))2nx 100%. An INDEPENDENT CLAIM is included for system for determining the number of graphene layers, which comprises a confocal microscope system with a neodymium-doped yttrium aluminum garnet laser and a charge coupled device (CCD) detector and a computing unit connected to the microscope system and detector.