1987, Seoul University, Department of inorganic materials, Bachelor of Engineering 1989, Seoul University, Department of inorganic materials, Master of engineering 1995, Rensselaer Polytechnic Institute, department of materials science, Doctor of Engineering
1996~1998, Samsung Electronics, Research Center for Optical Communication, Senior Researcher 1998~ Hanyang University, Division of Materials Science & Engineering, Professor
Amorphous optical materials Photonic materials and devices Thin film fabrication processes Energy storage and energy conversion (Batteries and Fuel Cells)