Jae Kap Jung holds a B.S. degree in physics and an M.S. and Ph.D. degrees in solid-state physics from Korea University, Seoul, Korea. He joined the Korea Research Institute of Standards and Science (KRISS), Daejeon, Korea, in 2001, where he has been involved in high-voltage current standards. From 2002 to 2023, he was Principal Researcher with the Center for Electricity and Magnetism, KRISS. He is currently affiliated with the Hydrogen Energy Materials Research Center, KRISS.