Perovskite Solar Cells (IMAGE) Technische Universität Dresden Caption Additional light emission is achieved by recursively recycling trapped photons in perovskites. Credit Dr. Changsoon Cho Usage Restrictions No 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.