Dr. Guo Han Joined Southern University of Science and Technology in Dec 2015, he is currently a research assistant professor in the Department of Materials Science and Engineering. He received his bachelor degree in physics in 2009 from Lanzhou University, PhD degree in physics in 2014 from National University of Singapore (NUS). From Dec 2014 to Nov 2014, he worked as a Postdoc in the chemistry department, NUS. His research area is organic electronics with focus on organic polymer semiconductors and organic thin-film transistors. He has published 10+ papers in journals such as JACS, Angew. Chem. Int. Ed.，Adv. Mater.，Chem. Mater.，ACS Appl. Mater. Interfaces，Adv. Electron. Mater. and etc.