▎ 摘　　要

Raman spectroscopy was used to study the structure of graphene synthesized from methane by chemical vapor deposition at atmospheric pressure and transferred to a SiO2/Si substrate using various transfer and polymer-removal methods. It was found that the dependences of the 2D peak positions on the G peak positions of the studied samples were well-behaved linear functions with slopes of similar to 2.2 that suggested the existence of biaxial stress in the graphene. It was discovered that the doping in the samples changed.