Photon Energy Splitting (IMAGE) ARC Centre of Excellence in Exciton Science Caption Photon energy splitting is done directly by two molecules, not via an excimer state (in red). Singlet fission materials must avoid excimer formation to reach full potential in enhancing photovoltaic energy conversion. Credit Professor Timothy Schmidt 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.