▎ 摘　　要

Here we employ cyclic atmospheric chemical vapor deposition method to readily achieve strictly monolayer graphene continuous sheet with size as large as several square centimeters on copper foil. The uniformity and quality of as-synthesized graphene sheet have been verified by optical microscope, Raman, and electronic measurement, etc. The mechanism of this method is also revealed by carbon isotope growth and following Raman mapping analysis. This simple but effective strategy is promising to be extended into mass production in future. (C) 2016 Elsevier Ltd. All rights reserved.