Doped and undoped (IMAGE) University of Utah Caption Muhamed Duhandžić holds two pieces of the organic semiconductor—the blue polymer has been doped with an iodine dopant. Credit Harriet Richardson/University of Utah Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. Adaptations must be shared under the same terms. License CC BY-NC-SA 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.