CVD Graphene on Copper (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption Panel (a): Optical image of a CVD graphene film on a 450 nanometer copper shows the finger morphology of the metal; (b) Raman 2D band map of the graphene film between the metal fingers, over the area marked by the red square on left. Credit Image from Yuegang Zhang Usage Restrictions None 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.