Senior Research Scientist, Electro-Opto Device Lab.,Material & Devices Research Center, Samsung Advanced Institute of Technology
Postdoctoral Research Fellow, University of California at Santa Barbara, Chemical Engineering & Materials
Assistant, Associate Professor, Dept. of Chemical & Biomolecular Engineering, KAIST
Invited Research Scientist, Laboratory of Integrative Biotechnology, Korea Research Institute of Bioscience & Biotechnology
Adjunct professor, KAIST Institute for nanotechnology
Adjunct professor, Dept. of chemistry, KAIST
Director, National Research Laboratory for Organic Opto-Electronic Materials
Director, World Class University for Nanostructure based High Performance Biosensing Device
Professor, Dept. of Chemical & Biomolecular Engineering, KAIST
KAIST Chair Professor, KAIST
Associate Editor, Macromolecular Research
Committee Member of Samsung Future Technology
