Assistant & Associate Professor, Dept. of Advanced Materials Engineering, Hannam University (Sep 2018 ~ Present)
Life Member in Clare Hall College, University of Cambridge (2025 ~ Present)
Visiting Professor (Electric Engineering Department) and Visiting Fellow (Clare Hall College), University of Cambridge (2025)
ISO committee member, TC38 (Textile), TC38/WG22 (Composition and chemical testing), TC61 (2022 ~ Present)
Manager, Corporate R&D, LG Chem (Jan 2014 ~ Aug 2018)
Visiting Researcher, Advanced Organic Materials, IBM Almaden Research Center (Feb 2011 ~ Apr 2011)
Organic materials: polymer synthesis, crystalline polymer, electric and electrochemical properties
Polymer electrolyte fuel cells: polymer synthesis, proton conducting polymers, ionomers, fluorinated polymers, hydrocarbon block copolymers, inorganic hybrid
Soft electronics: organic semiconductors, crystal growth, dielectric polymers, ferroelectric polymers, organic field-effect transistors (OFETs), non-volatile ferroelectric memory applications
Lithography: soft lithography, PDMS, micro-, nano-patterning, Selective Contact Evaporation Printing (SCEP), photolithography, e-beam lithography
Material analysis and characterization: electrochemical analysis for energy materials, electric applications of OFETs and memory, chemical and thermal analysis for synthesized polymers, optical analysis of polymer thin films, morphology analysis – X-ray Diffraction (XRD), TEM diffraction (SAED) and microscopic analysis – AFM, SEM and TEM