Photo 1 (IMAGE) National Research Council of Science & Technology Caption Perovskite solar cell, semi-transparent perovskite solar cell, perovskite-si tandem solar cell from the left Credit KOREA INSTITUTE OF ENERGY RESEARCH(KIER) Usage Restrictions The sources of photos and research results from KIER must be specified. License Original 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.