Lin X. Chen is a Professor of Chemistry in Northwestern University and a Distinguished Fellow in Argonne National Laboratory.  She received her B.Sc. in Chemistry from Peking University, and Ph.D. from the University of Chicago. After her postdoctoral research at UC Berkeley, she joined Argonne National Laboratory as a staff scientist.  Since 2007, she has become also a faculty in Northwestern University. Her research programs in both institutions focus on fundamental light-matter interactions on the time scales of femtosecond to longer in solar energy conversion platforms, including excited state molecular structural dynamics in photocatalytic processes and photovoltaic materials; understanding roles of ultrafast and coherent electronic and atomic motions in in photochemical reactions, and functional structural dynamics of biomacromolecules on multiple spatial and temporal scales. Her main tools for research are ultrafast laser and X-ray spectroscopy/scattering and other property/structural methods in collaborations with theorists and chemists making molecules and materials. She was awarded one of the highly cited scientists in 2019 by the Web of Science, with >250 publications, and >220 invited lectures.  She has been members of the Research Council for the Chemical, Biological and Geological Sciences Division, and Basic Energy Science Advisory Committee, Basic Energy Science, US Department of Energy, the Advisory Editorial Board of Journal of Physical Chemistry and Chemical Physics Letters, Journal of Materials Chemistry C, Aggregates, Senior Editor of ACS Energy Letters, Associate Editor of Chemical Science (RSC) and the International Science Advisory Committee for π-Functional Materials.  She is an AAAS and RCS Fellow and has won Experimental Physical Chemistry Award from ACS Physical Chemistry Division in 2020 was awarded the distinguished performance award at Argonne.   Her group website is at http://chemgroups.northwestern.edu/chen_group/.