SOLAR 2 (IMAGE) Rice University Caption Andrew Torma, an Applied Physics graduate student at Rice University, validates the electronic structure of a 2D/3D perovskite solar cell. Credit Jeff Fitlow/Rice University Usage Restrictions NONE License Original 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.