Blue Light (IMAGE) ETH Zurich Caption UV light shines on a pane of glass, coated with several layers of two-dimensional semiconductor nanoplatelets, which emits blue light. Credit ETH Zurich / Jakub Jagielski Usage Restrictions None 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.