Figure 2 (IMAGE) Institute for Basic Science Caption Figure 2: (A) SEM image of an adlayer-free single crystal graphene film with parallel long folds on a Cu(111) foil. (B) A high-resolution ultra-high-vacuum STM image of the honeycomb lattice of the single crystal graphene film. (C) Schematic illustration for straightforward fabrication of high-performance field-effect transistors in the region lying between two adjacent folds in the single crystal graphene film. (D) Carrier mobilities measured from field-effect transistors patterned with various kinds of graphene samples; adlayer-free single crystal graphene film shows the best performance. Credit IBS Usage Restrictions Please indicate the credit. License Licensed 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.