Rattling Structure (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption Rattling structures of halide perovskites: cesium tin iodide (left) and cesium lead iodide (right). Credit (Credit: UC Berkeley) 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.