Fan Zheng is a professor of material science at the ShanghaiTech University. His research interests include developing ab initio methods to simulate carrier dynamics in materials. By applying the first-priniciple’s computation methods, he is interested in illustrating the ultrafast process of the excited carriers’ motion in various materials/devices, including bulk materials, interfaces, chemical reactions, and nano-materials. Understanding these processes at an atomic level will help to design more efficient materials or devices.