Formation of graphene on the surface of copper under the conditions of chemical deposition from the gas phase

Abstract

This work is devoted to experimental studies of the effect of synthesis conditions on formation of single-layer graphene on the copper surface. Under the conditions of formation and growth of single-layer graphene, it is shown that characteristic times of graphite nuclei formation are about 1 min and times of primary layer growth are about 0.5 min. The subsequent layers form in 10 min. It is shown that hydrogen concentration at the initial stage of synthesis affects the growth rate of the second layer significantly.