Department of Chemical and Biomolecular Engineering
Korea Advanced Institute of Science and Technology

Faculty

Hee Tae Jung (정희태)

KAIST Chair, Professor

Tel : +82-42-350-3931
Fax : +82-42-350-3910
E-mail : heetae@kaist.ac.kr
Homepage : http://ooem.kaist.ac.kr
Education
- 1998 : Case Western Reserve Univ. (Ph.D in Macromolecular Sci. & Eng.)
- 1989 : KAIST (M.S. in Che.Eng.)
- 1987 : Yonsei Univ. (B.S. in Chem. Eng.)

Employment and Professional Experience
- 2010 ~ Present: Professor, KAIST
- 2009 ~ 2010: Visiting scholar, National Institute of Standards and Technology
- 2000 ~ 2009 : Associate Professor, KAIST
- 2003 ~ Present : Invited Research Scientist, Korea Research Institute of Bioscience & Biotechnology
- 1998 ~ 2000 : Research Fellow, U.C. Santa Barbara
- 1989 ~ 1994 : Senior Research Scientist, Samsung Advanced Institute of Technology

Awards and Honors
- 2010: Korean in PubMed Award (Biology Research Information Center)
- 2009: Campus Patent Strategy Universiade Outstanding Professor Award (National Academy of Engineering, Korea)
- 2008 : Science Award of The Year (KAIST)
- 2008: 2000 Outstanding scientists Award (International Biography)
- 2008 : Top 100 Scientist Award (International Biography)
- 2005 - 2007 : Top Scientist (Marquis Who is Who)
- 2005 - 2007 : The IBC Leading Scientist of World
- 2004 : Excellent Laboratory Advisor (DongA Science)
- 2002 : Outstanding Research Scientist (LG YonAm Foundation)
- 1997 : Outstanding Research Scientist Award (Advanced Liquid Crystal Materials Center)
- 1993 : Patent Map Competition Award (Samsung Electronics)

Research interests
- Molecular Self-Assemblies
- Supramolecular & Liquid Crystal Lithography
- Biomolecular Electronics & Optoelectronic Materials
- Carbon Nanotubes Surface Chemistry


Selected Publications
1. A new top-down approach for fabrication high-aspect-ratio complex nanostructures with 10 nm-scale features, Nano Letters , 10(9), 3604-3610 (2010)
2 .Preparation of graphene relying on porphyrin exfoliation of graphite, Chemical Comm., 46, 5091-5093 (2010)
3. Helical Nanofilament Phases, Science, 325, 456 (2009)
4. Vertical Alignment of Carbon Nanotubes Using the Magneto-Evaporation Method, Journal of American Chemical Society, 131(2), 742-748 (2009)
5. Generation with capillary force lithography of various complex patterned structures from a single ellipsoidal dot prepattern, Advanced Materials, 19, 4392-4398 (2007)
6. Internal structure visualization and lithographic use of periodic toroidal holes in liquid crystals, Nature Materials, 6, 866-870 (2007)
7. The origins of stability of spontaneous vesicles, Proceeding of National Academic Science (USA), 98 (4), 1353-1357 (2001)
8. Direct Visualization of Individual Cylindrical and Spherical Supramolecular Dendrimers, Science, 278, 449-452 (1997)

Organic Opto-Electronic Materials Laboratory
Molecular Assembly, Soft-nanolithography, Opto-electronic Materials & Devices

■ Molecular Self-Assembly

The interest in the general area of self-assembly, and specifically in Self-Assembled Macromolecules, stems partially from their perceived relevance to science and technology. Self-assembly is highly ordered and oriented and can incorporate a wide range of groups both in the alkyl chain and at the chain terminal. We use a variety of self-assembled macromolecules, including dendrimers, block-copolymers and liquid crystals.

■ Nanostructure Lithography

Soft lithography offers immediate advantages over photolithography and other conventional microfabrication techniques for applications in which patterning of nonplanar substrates, unusual materials, or large area patterning are the major concerns. It is especially promising for microfabrication of relatively simple, single-layer structures for uses in cell culture, as sensors, as microanalytical systems, in MEMS, and in applied optics. We study on soft lithographic techniques, using self-assembly, which have been demonstrated at the <100nm scale. Recently we have successfully achieved 10nm scale pattern feature through a new top-down approach.

■ Carbon based materials-Macromolecules hybrid

Carbon nanotubes, which are representative carbon-based materials, are extremely light (hence high strength/density ratio, 1-2 orders of magnitude greater than steel), highly electrically and thermally conducting and corrosion resistant. Another carbon-based product, Graphene has recently attracted considerable attention because of unique electronic properties that include its room-temperature quantum Hall effect and the massless Dirac fermion behavior of its charge carriers. To utilize the ideal properties of carbon nanotubes, the function-alization chemistry of the open ends, the exterior walls, and the interior cavity is expected to play a vital role in tailoring the properties of these materials and the engineering of nano-scale devices.

■ Opto-Electronic Materials

- LC materials for Display & Photonic Polymer Devices

A liquid crystal display consists of an array of tiny segments (called pixels) that can be manipulated to present information. This basic idea is common to all displays, ranging from simple calculators to a full color LCD television. Due to their structural flexibility and their unique processing and fabrication capabilities, polymers are being increasingly used for a variety of optical applications including telecommunications, optical interconnects, high-density data storage, optical processing, electro-optic modulation and switching, and displays.