ECE Colloquium: Wonjoon Choi(Korea University) “Energy Transport using Multi-Scale Hybrid Structures”
Speaker : Wonjoon Choi
Hybrid structures from nano-microscale to macroscale contribute to further manipulation of energy transport making them useful in many applications. I will introduce ongoing researches utilizing energy transports within multi-scale hybrid structures and devices. Topics will cover (1) active control of materials properties using structural and physicochemical transformation via the structure-guided combustion waves for the fabrication of energy storage materials (e.g. supercapacitor), (2) self-sustaining liquid-motion-sensing platform for continuous monitoring of dynamics using thermoelectrics and triboelectrics, (3) local thermal energy control through thermal metamaterials using the manipulation of continuum heat transfer, (4) Layer-by-Layer (LbL)-based coatings of porous structures for enhanced thermal energy transport for cooling applications of electronic devices, (5) aqueous-two-phase systems (ATPS) for active control of resistive pulse sensing, which detects mass transport through dynamic changes of current traces.
Dr. Wonjoon Choi is an associate professor in the School of Mechanical Engineering at Korea University. He was an assistant professor from 2012 to 2017 at Korea University. He received his Ph.D. from the Department of Mechanical Engineering at Massachusetts Institute of Technology (MIT) in 2012. He was a postdoctoral associate at Department of Chemical Engineering and Materials Science and Engineering at Massachusetts Institute of Technology (MIT), USA, in 2012. He completed his B.S. degree in the Department of Mechanical and Aerospace Engineering at Seoul National University in 2003. He worked as an engineer in CyverCVS and KEBT from 2003 to 2006. His research interests involve energy and mass transport in multiscale applications, such as thermal-chemical-electrical energy conversion in hybrid structures, energy storage materials, active control of thermal energy, thermal-fluidic sensing platform utilizing electrical energy generation.