Junwen Li is a UMD Postdoctoral Researcher in the Nanoscale Processes and Measurements Group in the Nanoscale Device Characterization Division. He received a B.S. in Physics from Qingdao University, China and a Ph.D. in Computational Materials Physics from Oklahoma State University. His doctoral research focused on first-principles studies of the electronic properties of one dimensional nanostructures. He then worked as Postdoctoral Research Associate in the School of Engineering at Brown University and a Visiting Scholar at the University of Pennsylvania studying the role of grain boundaries in photovoltaic absorber materials and exploring the feasibility of using two-dimensional materials as anodes for Li ion batteries and as efficient catalysts for hydrogen evolution. Junwen is working with Paul Haney performing first-principles simulations of the electronic and optical properties of nanostructures in thin-film solar cells based on novel materials.