Bilayer Graphene (IMAGE) University of Texas at Dallas Caption Graphene is a single layer of carbon atoms arranged in a flat honeycomb pattern, where each hexagon is formed by six carbon atoms at its vertices. University of Texas at Dallas physicists are studying the electrical properties that emerge when two layers of graphene are stacked. Credit University of Texas at Dallas Usage Restrictions with 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.