Heyou Zhang, University of Melbourne (IMAGE) ARC Centre of Excellence in Exciton Science Caption Heyou Zhang working in the NanoScience Laboratory at The University of Melbourne's School of Chemistry Credit Gavan Mitchell & Michelle Gough Usage Restrictions Please credit image authors accordingly. 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.