2D perovskite LEDs (IMAGE) City University of Hong Kong Caption The structure and performance of 2D perovskite LEDs. Credit Figure source: DOI number: 10.1038/s41467-021-21522-8 Usage Restrictions Image must be used with appropriate caption and 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.