Dr. Mingrui He is currently a Postdoctoral Researcher at the School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Australia. Mingrui received his B.S. and M.S. degrees in Materials Science and Engineering at Chonnam National University (CNU), Korea in 2015 and 2017, and Ph.D. degree from UNSW in 2021. His research interests are earth-abundant materials for applications in photovoltaic devices and solar hydrogen evolution.