Solid-oxide Fuel Cell Membrane Wafer (IMAGE) Harvard University Caption This is a fully functional solid-oxide fuel cell membrane wafer. The structured surface of each square chip lends stability to the incredibly thin film that is used for the electrochemical membrane. Credit Photo courtesy of Shriram Ramanathan, Harvard School of Engineering and Applied Sciences 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.