University of Delaware Capacitor Research (IMAGE) University of Delaware Caption University of Delaware's Bingqing Wei is part of a research team that has reported on the use of nanotechnology to improve the energy density of dielectric capacitors. Credit Kathy F. Atkinson/University of Delaware Usage Restrictions Image must include credit to University of Delaware 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.