Different exciton subtypes (IMAGE) City University of Hong Kong Caption Illustration depicting different exciton subtypes identified in the study. The team found that excitons in TaSe3 possess at least three different internal structures: intrachain (in pink), interchain (in red), and trion (in blue) formed from two electrons and a hole. Credit Ma Junzhang Usage Restrictions Image must be used with appropriate caption and credit. License Original 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.