Ring-Shaped Large-Area Organic Photodiode (IMAGE) Georgia Institute of Technology Caption Georgia Tech principal research scientist Canek Fuentes-Hernandez holds a ring-shaped, large-area organic photodiode whose performance is comparable to that of silicon-based photodiodes. Credit Canek Fuentes-Hernandez, Georgia Tech 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.