Graphene-Coated Porous Silicon Wafer (IMAGE) Vanderbilt University Caption A silicon wafer with a porous surface that has been coated with graphene next to the special furnace where the coating was applied. Credit Joe Howell, Vanderbilt University 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.