▎ 摘　　要

Evidence for the presence of a liquid phase on a copper surface during graphene growth by chemical vapour deposition at temperatures of 1000 and 1050 degrees C has been experimentally obtained. It was established that, first, the liquid phase forms a groove structure and bubblelike nanoobjects on the copper surface. Second, the liquid phase promotes the propagation of the wavy relief of a growing graphene film to the adjacent copper, and, third, the surface flows of the liquid phase can influence the waviness and orientation of the graphene islands. From the obtained data, it was concluded that surface melting plays an important role in graphene formation by chemical vapour deposition at temperatures below the melting point of copper.