Organic Photovoltaic Cells (image) American Institute of Physics Caption Researchers develop method to screen organic materials for organic photovoltaic cells by charge formation efficiency. Credit Yutaka Moritomo/University of Tsukuba Usage Restrictions This image may be used only with appropriate caption and credit. 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.