Depiction of Polymer Swelling (IMAGE) University of Washington Caption This is a schematic of the P3HT film, showing regions that are able to subtly swell to let in ion molecules. Credit Rajiv Giridharagopal Usage Restrictions Must include 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.