Title ：Lattice defects in solid ionic conductors: Theory and emerging applications
Speaker ：Guo Xin, Huazhong University of Science and Technology
Time：2020.10.13 （Tuesday） 15:00 p.m.
Venue：Conference Room 102, Building B5, University Town Campus, South China University of Technology
Welcome faculty members and students to attend!
Guo Xin is a second-class professor at School of Materials, Huazhong University of Science and Technology. He is the recipient of the fourth batch of the National **** program. He is also a director of China Solid State Ionics Society, an editorial board member of Solid State Ionics, and an academic award judge of the International Society for Solid State Ionics. He was a lifelong senior researcher at the Research Center Juelich in Germany before coming back to China. He worked for many years at the Max Planck Institute for Solid State Research in Germany. In 2005, he won the Ross Coffin Purdy Award by the American Ceramic Society. He has been invited to give scientific reports for more than 80 times in domestic and international mainstream academic conferences (e.g., MRS, E - MRS, ECS, MS&T, SSI, etc.) and domestic and foreign famous universities and research institutions, such as MIT, Stanford university, the Swiss Federal Institute of Technology, the Max Planck institute, Tsinghua university, Beijing university and the Institute of Physics, Chinese Academy of Sciences, etc.). He has published more than 150 papers in academic journals such as Science, Advanced Materials, Advanced Functional Materials, etc. After returning to China full-time in 2012, he founded the Solid State Ion Laboratory, whose research field can be summarized as solid state ion conductor and mixed conductor and their applications in information, energy and environment. The specific research areas include: 1. Brain-like chips and artificial intelligence, 2. Solid electrolyte and solid state battery, 3. Gas sensor and artificial sense of smell. .
Lattice defects in solid ionic conductors mainly include point defects (zero dimensional defects), dislocations (one dimensional defects) and grain boundaries (two dimensional defects), etc. The interaction between defects in materials determines the properties of materials. First of all, I will summarize the research results of point defects, dislocations and grain boundaries, and propose the control methods for defects in materials. Then, I'll introduce some emerging applications based on defect control, including brain chips and artificial intelligence, solid electrolyte and solid state batteries, gas sensors, and artificial olfaction.