Graphene (IMAGE) University of Luxembourg Caption Self-assembled semi-conducting nano-crystals with a honeycomb structure are emerging as a new class of systems with great potential. Credit (c) Physics and Materials Science Research Unit 2014 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.