Changsoon Choi received the B.S. degree from the Department of Material Science and Engineering, Seoul National University, in 2012, and the M.S. and Ph.D. degrees from the School of Chemical and Biological Engineering, Seoul National University, Seoul, South Korea, in 2014 and 2020, respectively. He is currently a Senior Research Scientist of the Center for Opto-Electronic Materials and Devices, Post-silicon Semiconductor Institute, Korea Institute of Science and Technology, Seoul, South Korea. His research interests include bio-inspired optoelectronics for machine vision applications.