Byeong-Hyeok SohnProfessor
  • E-MAILbhsohn@snu.ac.kr
  • ADDRESS503-401, 430

  • OFFICE+82-2-883-2154FAX+82-2-889-1568LAB+82-2-880-9118

Current Research Interests
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

Education and Experience
B.S., Seoul National University, 1987

M.S., Seoul National University, 1989

Ph.D., MIT, USA, 1996

Representative Publications
"Enhancement and concurrence of emissions from multiple fluorophores in a single emitting layer of micellar nanostructures", Seong Il Yoo, Jae-Hyun Lee, Intae Eom, Taiha Joo, Sung Jin An, Gyu-Chul Yi, and Byeong-Hyeok Sohn, Advanced Functional Materials 18, 2984-2989 (2008)

"Single-layered films of diblock copolymer micelles containing quantum dots and fluorescent dyes and their fluorescence resonance energy transfer", Su Hak Bae, Seong Il Yoo, Wan Ki Bae, Seonghoon Lee, Jin-Kyu Lee, and Byeong-Hyeok Sohn, Chemistry of Materials 20, 4185–4187 (2008)

"Orientation of lamellar nanostructures in the patterned thin films of a diblock copolymer", Sehee Kim, Jiyeon Lee, Seung-Min Jeon, Hong H. Lee, Kookheon Char, and Byeong-Hyeok Sohn, Macromolecules 41, 3401–3404 (2008)

"Controlled light emission by nanoencapsulation of fluorophores in thin films of diblock copolymer micelles", Seong Il Yoo, Sung Jin An, Geon Ha Choi, Ki Se Kim, Gyu-Chul Yi, Wang-Cheol Zin, Jin Chul Jung, and Byeong-Hyeok Sohn, Advanced Materials 19, 1594-1596 (2007)

"Single layers of diblock copolymer micelles for the fabrication of arrays of nanoparticles", Seong Il Yoo, Jeong-Hwa Kwon, and Byeong-Hyeok Sohn, Journal of Materials Chemistry 17, 2969–2975 (2007)

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