Academic Experiences
Mar. 1999 – Feb. 2005 : B.S. in Materials Science and Engineering, Seoul National University, Seoul, Korea
Jan. 2007 – Jun. 2011 : Ph.D in Materials, University of California, Santa Barbara, CA
Research Experiences
2024-Current : Associate Professor, Department of Materials Science and Engineering, Seoul National University
2022-2023 : Visiting Professor, ECE Department, UC San Diego, USA
2017-2024 : Associate Professor, Department of Materials Science and Engineering, POSTECH
2012-2017 : Assistant Professor, Department of Materials Science and Engineering, POSTECH
2007-2011 : Postdoctoral Research Associate, Materials Department and ECE Department, University of California, Santa Barbara, CA
2011-2012 : Graduate Student Researcher, University of California, Santa Barbara, CA
2007 : Visiting Researcher, Ecole Polytechnique Federal de Lausanne (EPFL), Switzerland
Research Interests
Emerging Oxide and Quantum Materials
– Oxide Materials with Phase Transition
– Oxide Semiconductors with High Electron Mobility
– Oxide Heterostructures and Quantum Wells
Emerging Devices and Sensors
– Next-generation Electronic Devices
– Ultrasensitive Gas and Bio Sensors
– Threshold Mott Switches and Memory Devices
Thin Film Growth and Characterization
– Epitaxial Thin Film Growth
– Atomically Controlled Oxide Heterostructures
– Synchrotron-based Characterization
Selected Publications
“Piezo-strain-controlled phase transition in single-crystalline Mott switches for threshold-manipulated leaky-integrate-and-fire neurons”, Science Advances (2024)
“Embedded metallic nanoparticles facilitate metastability of switchable metallic domains in Mott threshold switches”, Nature Communications, 13, 4609 (2022)
“Reversible manipulation of photoconductivity caused by surface oxygen vacancies in perovskite stannates with ultraviolet light”, Advanced Materials, 34, 2107650 (2022)
“Heterogeneous integration of single-crystalline rutile nanomembranes with steep phase transition on silicon substrates”, Nature Communications, 12, 5019 (2021)
“Reversible phase modulation and hydrogen storage in multivalent VO2 epitaxial films”, Nature Materials, 15, 1113 (2016)