報告題目：Unveiling the anomalous transport properties of high-performance thermoelectric materials

主  講 人：Yue Chen （陳粵）

                   Department of Mechanical Engineering, the University of Hong Kong

報告時間：2016年6月1日（周三）上午9：30

報告地點(diǎn)：化學(xué)樓二樓一號會議室

In this presentation, I will speak about the interacting phonon problems and the transport properties of high-performance thermoelectric materials. Recent studies revealed strong phonon interactions at elevated temperatures in the IV-VI compounds. Conventional first-principles approaches, however, have shown difficulties in explaining the strong temperature dependence of the phonon spectra. I will present our recent advancements in developing a robust approach that combines density functional calculations and molecular dynamic simulations to account for the strong phonon interactions observed in neutron scattering experiments. It will be demonstrated that the combination of computational approaches in the electronic and atomistic levels is extremely powerful for the design of functional materials, and the understanding of the fundamentals of materials behaviors regarding the effects of temperature, pressure and doping.

Speaker introduction

Yue Chen is an assistant professor at the University of Hong Kong, Department of Mechanical Engineering. His research interests are focused on the materials physics for electrical and thermal transports, such as electronic structures and lattice dynamics. His interests stem from the studies of materials science at University of Oxford and Beihang University. He was a postdoctoral fellow at Columbia University and Institute of Metal research, Chinese Academy of Sciences before joining HKU.