Alternating Chloride-Bromide (image) DOE/Lawrence Berkeley National Laboratory Share Print E-Mail Caption A 2-D plate showing alternating cesium lead chloride (blue) and cesium lead bromide (green) segments. Credit Letian Dou/Berkeley Lab and Connor G. Bischak/UC Berkeley Usage Restrictions Editorial use only. Share Print E-Mail 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.