Yuanbao1 (IMAGE) King Abdullah University of Science & Technology (KAUST) Caption Adding diquat, a known herbicide, as a dopant enhances the conversion efficiency of high-performance organic solar cells. Credit © 2021 Yuanbao Lin Usage Restrictions Please credit. 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.