Perovskite Solar Cells (IMAGE) Brown University Caption Researchers have come up with a new way to make perovskite films for solar cells. The technique is especially well suited to making ultra-thin films that are semi-transparent, which could be useful for window photovoltaics. The cells can also be made in different colors. Credit Padture lab/Brown 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.