2007 Ph.D. Mechanical Engineering, Northwestern University Dissertation title: “Optical and electrical characterization of graphene-based material” Research advisor: Rodney S. Ruoff 1999 M.S. Mechanical Design and Production Engineering, Seoul National University Thesis: “Sound propagation in circular ducts lined with noise control foams “ Research advisor: Yeon June Kang 1997 B.S. Mechanical Design and Production Engineering, Seoul National University

Kyung Hee University, Department of Mechanical Engineering 2011-present -professor Mar. 2020 – present -Associate professor Mar. 2015 – 2020 -Assistant professor Mar. 2011 – Feb. 2015 Kyung Hee University, KHU-KIST Department of Converging Science and Technology 2015-2020 - Associate professor Sep. 2015 – 2020 University of Illinois at Urbana Champaign, Rogers Research Group 2009-2011 -Postdoctoral fellow Jan. 2009 – Mar. 2011 University of Texas at Austin, Nanotechnology and science laboratory 2008–2009 -Postdoctoral fellow Jan. 2008 – Jan. 2009 Northwestern University, Nanotechnology and science laboratory 2004–2007 -Research Assistant Sep. 2004 – Dec. 2007 -Teaching Assistant Mar. 2005 – Jun. 2005, Sep. 2006 – Dec. 2006 LG Electronics Inc., Digital appliance research laboratory 1999–2004 -Senior Engineer May. 2004 – Jun. 2004 -Associate Engineer Jan. 2001 – May. 2004 -Assistant Engineer Mar. 1999 – Jan. 2001

1. Skin-interfaced biosensors and pilot studies for advanced wireless physiological monitoring in neonatal and pediatric intensive care units, Nature Medicine 2020 26(3), 418–429 2. Wireless sensors for continuous, multimodal measurements at the skin interface with lower limb prostheses, Science Translational Medicine 2020, 12(574) 3. Ultra-robust wide-range pressure sensor with fast response based on polyurethane foam doubly coated with conformal silicone rubber and CNT/ TPU nanocomposites islands, Composites Part B 2019, 177, 107364 4. Analysis of acoustical performance of bi-layer graphene and graphene-foam-based thermoacoustic sound generating devices, Carbon 2018 127 13-20 5. Digital cameras with designs inspired by the arthropod eye, Nature 2013, 497, 95-99 6. A dynamically tunable hemispherical electronic eye camera system with adjustable zoom capability, PNAS 2011 108(5), 1788-1793 7. GaAs photovoltaics and optoelectronics using releasable multilayer epitaxial assemblies, Nature 2010, 465, 329-333 8. Large-area synthesis of high-quality and uniform graphene films on copper foils, Science 2009, 324(5932) 1312-1314 9. Tunable electrical conductivity of individual graphene oxide sheets reduced at “low” temperatures. Nano Letters 2008, 8(12), 4283-4287 10. Simple approach for high-contrast optical imaging and characterization of graphene-based sheets, Nano Letters 2007, 7,(12) 3569-3575