Image 1 (IMAGE) National Research Council of Science & Technology Caption The film-based rollable solar cell/optical sensor device developed by the research team maintained high efficiency even after undergoing 5,000 cycles of repetitive stress testing Credit Korea Institute of Materials Science (KIMS) Usage Restrictions The sources of photos and research results from KIMS 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.