Junghwan Kim received his Ph.D. in 2015 from the Gwangju Institute of Science and Technology (GIST), Republic of Korea. He has worked at the University of Toronto (Prof. Ted Sargent group) as a post-doctoral fellow and then moved to the Korea Institute of Science and Technology (KIST, Seoul) as a senior researcher. He is currently working as an Assistant Professor in the Department of Materials System Engineering at Pukyong National University, Republic of Korea. He has published in many prestigious journals including Nature Energy, Energy & Environmental Science, and Advanced Materials. His research interests encompass energy harvesting, storage, and space shielding materials using novel composites of 2D materials, metal oxides, conjugated organic molecules, perovskite, colloidal quantum dots, and so on.