DeWolff1 (IMAGE) King Abdullah University of Science & Technology (KAUST) Caption Slot-die coating technique used for large-scale fabrication of perovskite solar cells. Credit © 2020 KAUST Usage Restrictions Please credit 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.