Vikram Dalal, Iowa State University (IMAGE) Iowa State University Caption Iowa State University's Vikram Dalal has worked nearly four decades to improve the performance of solar cells. His goal is to boost efficiency without raising costs. Credit Photo by Bob Elbert/Iowa State University 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.