Arrangement of Graphene Flakes (IMAGE) University of Nottingham Caption A representative arrangement of graphene flakes in ink-jet printed graphene between two contacts (green). Color gradient corresponds to variation of flake potentials. Credit University of Nottingham 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.