Doctor of Philosophy, Joenbuk National University, Jeonju, 2000.
Postdoctoral research associate University Illinois, Champaign-Urbana, 2000—2001. Senior researcher Electronics and Telecommunications Research Institute, Daejeon, Republic of Korea, 2001—2003. Senior research scientist Advanced Photonics Research Institute, Gwangju, Republic of Korea, since 2003.
Member of Carbon Nanotube Standardization Committee, Korea Nanophotonics Society.
Married Se Young Park, January 1, 2000. Children: Sean Jihoo, Jihyo.