922 (IMAGE) King Abdullah University of Science & Technology (KAUST) Caption Crystal structure of a two-dimensional hybrid perovskite with long hot-carrier cooling time. Credit © 2019 Jun Yin 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.