At 15:30 on October 11, 2023, Geng Yanhou, a professor of the School of Materials of Tianjin University, invited by Professor Huang Hui, came to the University of the Chinese Academy of Sciences to give a lecture on the theme of "conjugated polymer synthesis methods", which was held in Classroom 306 on the first floor of the classroom.

The research on synthesis methods is the core of chemical research, which can provide a material foundation for a deep understanding of the basic properties of co polymers and the establishment of structure-activity relationships. It is also the foundation for the development of high-performance materials with independent intellectual property rights.

Professor Geng Yanhou systematically introduced his research achievements from three aspects: the synthesis strategy of monodisperse conjugated polymers, the controllable synthesis of conjugated polymers, and the direct arylation polycondensation synthesis of polymer semiconductor materials. Firstly, various synthesis strategies for monodisperse conjugated polymers were introduced, and conjugated polymers with an absolute molecular weight exceeding 20000 g/mol were synthesized. The extended chain crystallization characteristics of conjugated polymers were demonstrated, and nanostructured photovoltaic effect films with near ideal heterojunctions were constructed. Subsequently, catalytic transfer polycondensation reactions of various AB monomers were studied, achieving controllable synthesis of conjugated polymers such as polyfluorene. It was found that intramolecular transfer of the catalyst can occur on non conjugated main chains. Finally, a series of high mobility n-type and bipolar polymer semiconductor materials were developed by developing highly active C-H monomers of polyhalogenated thiophene derivatives, combining polymerization method research with high mobility material design. Finally, Professor Geng Yanhou had exchanges and discussions with the on-site teachers and students, and received a warm response from the on-site teachers and students.

Geng Yanhou, winner of the "Hundred Talents Program" of the Chinese Academy of Sciences (2003), the "National Fund for Distinguished Young Scholars" (2005) and the special government allowance of the State Council (2011), was selected into the second batch of "Ten Thousand Talents Program" of the Organization Department of the CPC Central Committee in 2016. Graduated from the Department of Applied Chemistry at Shanghai Jiao Tong University in 1991, and obtained a doctoral degree from the Changchun Institute of Chemistry, Chinese Academy of Sciences in 1996. From 1998 to 2003, he conducted visiting research at the Hong Kong University of Science and Technology, the Max Planck Polymer Research Institute in Germany (recipient of the Humboldt Scholarship), and the University of Rochester in the United States. From 2003 to 2015, he served as a researcher of Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, and currently he is a professor and doctoral supervisor of School of Materials, Tianjin University. Published over 250 academic papers, applied for and authorized more than 20 invention patents, and won one second prize in National Natural Science Award and one first prize in Jilin Province Science and Technology Progress Award. Research interests include: (1) organic/polymer semiconductor materials and their applications; (2) Novel aromatic polycyclic compounds and their copolymers; (3) The synthesis method of copolymers.