Faculty

  • Seon Namgung (남궁선)

  • Assistant Professor
  • Quantum Nanoscale Devices and Bio-engineering
  • Current Research Interests

    My main research interest focuses on developing novel optoelectronic devices, such as photodetectors, light emission devices, and optical modulators, using plasmonics and atomically thin low dimensional nanomaterials, including 1-dimensional materials, such as carbon nanotubes, and 2-dimensional materials such as graphene, black phosphorus, and transition metal dichalcogenide (TMDC) sheets. With studying the fundamental physics of quantum materials and optical systems and their hybrid systems, we will utilize those materials/hybrid systems for future optoelectronic applications such as on-chip ultrafast data communication and quantum computing building blocks. My research interest also includes practical bio-applications such as bio/chemical sensing, bio-system analysis platform development, and cellular function control using low-dimensional materials and nanostructures. Since the dimension of nanomaterials/structures is comparable to that of biological components, those nano-systems have a promising potential for diverse bioengineering.

    Nanoscale Optoelectronic Devices based on Low-dimensional Materials and Plasmonics
    – Optoelectronic Devices based on Hybrids of 1D/2D Materials and Plasmonic Nanostructures
    – On-chip Integration of Optoelectronic Nanodevices and their Communication.
    – Quantum Light Source based on Nano Materials.
    – Exciton Dynamics and Valleytronics in 2D Materials.

    Biosensors and Bio-engineering based on Nanostructures
    – Biosensors based on Low-dimensional Materials and/or Plasmonic Nanostructures.
    – Bio-material (Protein/Lipid/Cell) Engineering on Nanostructures/Nanodevices

  • Biographical Sketch

    Professional Career

    • Assistant Professor in Department of Physics, UNIST, Korea. (2019 – present)
    • Postdoctoral Researcher in Department of Electrical and Computer Engineering, University of Minnesota, U.S. (2012 – 2019)
    • Postdoctoral Researcher in Department of Physics and Astronomy, Seoul National University, Korea. (2011-2012)

    Education

    • Ph.D. in Physics (2011), Seoul National University, Seoul, Korea (Advisor: Seunghun Hong)
    • B.S. in Physics (2000), Seoul National University, Seoul, Korea
  • Selected Publications
    • Ultrasmall Plasmonic Single Nanoparticle Light Source Driven by a Graphene Tunnel Junction, ACS Nano 12, 2780–2788 (2018).
    • Multimodal Photodiode and Phototransistor Device Based on Two-Dimensional Materials, ACS Nano 10, 10500–10506 (2016).
    • Perfect Extinction of Terahertz Waves in Monolayer Graphene over 2-nm-wide Metallic Apertures, Advanced Optical Materials 3, 667-673 (2015).
    • Controlling the Growth and Differentiation of Human Mesenchymal Stem Cells by the Arrangement of Individual Carbon Nanotubes, ACS Nano 5, 7383-7390 (2011).
    • Fibronectin-Carbon-Nanotube Hybrid Nanostructures for Controlled Cell Growth, Small 7, 56-61 (2011).