He received the Ph.D degree in Electrical and Computer Engineering from the University of Texas at Austin in 2015, the M.S. degree in Electrical Engineering from Korea Advanced Institute of Science and Technology (KAIST) in 2010, and the B.S. degree in Electrical and Electronic Engineering from Yonsei University in 2008. Prior to joining Sookmyung Women’s University, he was a research associate at the University of Cambridge. He was a research engineer at Hynix Semiconductor from 2010 to 2011. His current research interests include printed and flexible electronics, thin-film transistors and circuits based on low dimensional materials.