Figure 1 (IMAGE) Institute for Basic Science Caption (a, b) SEM images and (c) AFM phase image of graphene folds in an adlayer-free single-crystal graphene film on a Cu(111) foil. (d) Schematic of the mechanism of graphene folds formation during the cooling process. Credit Attribution Required Usage Restrictions Institute for Basic Science License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.