초고속 전자구조 동역학 연구실

We design and build our own instruments to study ultrafast electronic dynamics, with the goal of applying our findings to solve real-world challenges in photocatalysis, electronic devices, and solid-state batteries. Atomic imaging and chemical fingerprints: We are going to explore the structure of materials at the atomic level, combined with the spectral analysis from molecular vibrations (IR) to core-to-valence transitions, allowing for element- and carrier-specific analysis of photoinitiated electronic dynamics. We study the correlated dynamics between structure and electrons. Our group studies the transient behavior of electrons in both condensed matter and functionalized device systems and their time-dependent dynamics in various atomic or ionic environments. We develop tabletop transient extreme ultraviolet (XUV/EUV) absorption and reflection spectroscopy, which offers high element specificity and electronic selectivity for ultrafast measurements. We synergistically employ high-resolution electron microscopy and diffraction to measure correlative structural dynamics at the fundamental length and timescale. (1) Open communications among the group members, and inclusive environment where different thoughts and ideas are valued. There are no dumb questions or answers in research. (2) Transparency is another key principle within the group, where we freely share experiences, new techniques/tools, and constructive feedback on each other's work without expecting anything in return.