Femosecond Lasers (IMAGE) Nanyang Technological University Caption NTU and UG researchers used femosecond lasers to analyse a perovskite solar cell. Credit NTU Singapore Usage Restrictions For this story only 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.