Graphene Bandgap (1 of 2) (IMAGE) Georgia Institute of Technology Caption This is a perspective atomic force microscope (AFM) view of graphitized trenches that are 18 nanometers deep. Credit Courtesy Georgia Tech 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.