Schematic (IMAGE) World Scientific Caption This is a schematic of the growth of a graphene single crystal near and across the Cu grain boundary. The existence of the grain boundary does not influence the lattice orientation and growth direction of formed graphene nucleus. Credit Pei Zhao 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.