Two perovskite cells immersed in water (IMAGE) KTH, Royal Institute of Technology Caption Perovskite cells immersed in water. On the left, the encapsulated perovskite and on the right, the normal material. Credit James Gardner/KTH Royal Institute of Technology Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND 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.