Sohn, Byeong-Hyeok

Polymeric and Soft Nanomaterials Laboratory
LAB Website
OFFICE 503-422 / +82-2-883-2154
LAB 503-401,430 / +82-2-880-9118

Research Topic

Our research involves developing novel electronic, photonic, magnetic, and catalytic materials based on soft materials including polymers, colloids, and liquid crystals. We particularly interest in utilizing self-assembling natures and nanostructures of soft materials to make them suitable for device applications. For example, diblock copolymers spontaneously form nanometer-sized micelles in a selective solvent for one of the blocks. These micelles can be coated on solid substrates to form a self-assembled nanostructure, which can serve as a nanostructured template to direct the synthesis of an ultrahigh density array of nanoparticles. We also emphasize thin films of soft materials because functional materials should be in the form of thin films in most device applications. We investigate fabrication strategies of controlled and directed nanostructures by adjusting interfaces and surface of thin films of soft materials.

1. Soft Nanomaterials with Electronic, Photonic, Magnetic, and Catalytic Functionalities
- Polymer nanomaterials with metal, semiconductor, oxide nanoparticles
- Block copolymers and their micelles with magnetic and catalytic nanoparticles
- Hierarchical materials of nanostructures in microstructures
- Biomimetic materials

2. Thin Films of Self-Assembling Materials for Device Applications
- Self-assembled polymeric nanotemplates for ultrahigh density arrays
- Nanopatterning with thin films of block copolymers
- Directed self-assembly of nanoparticles on nanostructured templates
- Nanolithography with self-assembled monolayers


  • Ph.D., MIT, USA, 1996
  • M.S., Seoul National University, 1989
  • B.S., Seoul National University, 1987


  • Postdoctoral Associate, Massachusetts Institute of Technology (MIT), 1996~1997.
  • Research Associate, University of Wisconsin-Madison, 1997~1998.
  • Assistant/Associate Professor, Pohang University of Science and Technology (POSTECH), 1998~2004.
  • Associate Professor, Seoul National University (SNU), 2004~2008.
  • Professor, Seoul National University (SNU), 2008~Current.


  1. “Planar and van der Waals Heterostructures for Vertical Tunnelling Single Electron Transistors” Kim, G.; Kim, S.-S.; Jeon, J.; Yoon, S. I.; Misra, A.; Ozdemir, S.; Yin, J.; Ghazaryan, D.; Holwill, M.; Mishchenko, A.; Andreeva, D. V.; Kim, Y.-J.; Jeong, H. Y.; Jang, A.-R.; Chung, H.-J.; Geim, A. K.; Novoselov, K. S.; Sohn, B. H.; Shin, H. S. Nature Communications 2019, 10, 230-230.
  2. “Dichroic Plasmon Superstructures of Au Nanorods over Macroscopic Areas via Directed Self‐Assemblies of Diblock Copolymers” Kang, H.; Kim, S.-S.; Yoo, S. I.; Sohn, B. H. Advanced Materials Interfaces 2019, 6, 1901257-1901257.
  3. “One-Step Hierarchical Assembly of Spheres-in-Lamellae Nanostructures from Solvent-Annealed Thin Films of Binary Diblock Copolymer Micelles” Kim, S. H.; Char, K.; Yoo, S. I.; Sohn, B. H. Advanced Functional Materials 2017, 27, 1606715.
  4. “Catalytic Tailoring of Large-Area Reduced Graphene Oxide by Tunable Arrays of Pt Nanostructures Synthesized from Self-Assembling Diblock Copolymers” Kim, S.-S.; Sohn, B. H. Carbon 2016, 107, 124-131.
  5. “Branched and Crosslinked Supracolloidal Chains with Diblock Copolymer Micelles Having Well-Defined Three Patches” Lee, S.; Jang, S. W.; Kim, K.; Jeon, J.; Kim, S.-S.; Sohn, B. H. Chemical Communications 2016, 52, 9430-9433.
  6. “Fluorescent Supracolloidal Polymer Chains with Quantum Dots” Chae, S.; Lee, S.; Kim, K.; Jang, S. W.; Sohn, B. H. Chemical Communications 2016, 52, 6475-6478.

Search Papers

Ki-Se Kim, Hun Kim, Jeong-Hee Kim, Jin-Hyung Kim, Chang-Lyoul Lee, Frederic Laquai, Seong Il Yoo, Byeong-Hyeok Sohn
Journal of Materials Chemistry, 2012, 22, 47, (2012-12-21) Link
Shanhua Jin, Yuwon Lee, Seung-Min Jeon, Byeong-Hyeok Sohn, Weon-Sik Chae, Jin-Kyu Lee
Journal of Materials Chemistry, 2012, 22, 44, (2012-11-28) Link
Ki-Se Kim, Jeong-Hee Kim, Hun Kim, Frederic Laquai, Eric Arifin, Jin-Kyu Lee, Seong Il Yoo, Byeong-Hyeok Sohn
ACS Nano, 2012, 6, 6, (2012-06-26) Link
Sung-Soo Kim, Jeong-Yong Choi, Kwan Kim, Byeong-Hyeok Sohn
Nanotechnology, 2012, 23, 12, (2012-03-30) Link
Jeong-Hee Kim, Su Hak Bae, Seungyong Chae, Byeong-Hyeok Sohn
Thin Solid Films, 2012, 520, 6, (2012-01-01) Link
Jaeman Jang, Jae Chul Park, Dongsik Kong, Dong Myong Kim, Jang-Sik Lee, Byeong-Hyeok Sohn, Il Hwan Cho, Dae-Hwan Kim
IEEE Transactions on Electron Devices, 2011, 58, 11, (2011-11-01) Link
Niko Haberkorn, Sehee Kim, Ki-Se Kim, Michael Sommer, Mukundun Thelakkat, Byeong-Hyeok Sohn, Patrick Theato
Macromolecular Chemistry and Physics, 2011, 212, 19, (2011-10-04) Link
Jang-Sik Lee, Yong-Mu Kim, Jeong-Hwa Kwon, Jae Sung Sim, Hyunjung Shin, Byeong-Hyeok Sohn, Quanxi Jia, Jang-Sik Lee
Advanced Materials, 2011, 23, 18, (2011-05-10) Link