(IMAGE) Karlsruher Institut für Technologie (KIT) Caption Using the photoactive zinc oxide material, scientists studied the formation and migration of so-called polarons. Credit Figure: Patrick Rinke/Aalto University 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.