Special Lecture by Distinguished Scholar [February 14]

Information on a special lecture by a foreign distinguished scholar

Northwestern University Professor Rod Ruoff, who is carrying out world-class leading researches in the field of nano composite, will give a special lecture at KAIST.

=   Information   =

    1. Date: 16:00 - 17:00, Monday, February 12, 2007

    2. Venue: Classroom no. 102, Creative Learning B/D (E-11), KAIST

    3. Title: Fracture Mechanics of Carbon Nanotubes and The Advent of Graphene-based Materials

    4. Speaker: Prof. Rod Ruoff

                 (Department of Mechanical Engineering, Northwestern University)

     5. Contents:

I provide a brief update on experimental fracture mechanics of carbon nanotubes, specifically SWCNTs of known diameter and chirality. I then turn to discussing a new class of materials, the graphene-based materials. Our top-down approaches inspired physicists to study individual layers of graphite, but our current approach has been to convert graphite to graphite oxide (GO), generate colloidal suspensions of individual layers of GO (we call them ‘graphene oxide’) in water, and to use these individual layers in a variety of ways. For example, we have xembedded individual and reduced 'graphene oxide' sheets in polymers such as polystyrene and evaluated their dispersion, sheet morphology, and the electrical percolation and conductivity of the resulting composites. In parallel paths, we have: (i) undertaken studies of individual graphene oxide and reduced graphene oxide sheets, to elucidate their optical and electrical properties, (ii) xembedded graphene oxide sheets in glass by a sol-gel route and made electrically conductive and transparent glass coatings, and (iii) produced 'graphene oxide paper', a material with intriguing  mechanical properties.

    6. Organizer: Nano Research Institute, KAIST Department of Chemistry

    7. Participation Fee: Free

    8. Inquiries: Professor Insung Choi (Tel. 042-869-2840 / 016-364-2840)

                    Sanggun Lee, Nano Research Institute (Tel. 042-869-8801)

Sehoon Kim

Professor in charge of the Department of Chemistry, KAIST

Dokyung Kim

Head of Nano Research Institute