Pennergy Seminar: Philip Kim, Ultimate Limit of Resistivity in Graphene and Carbon Nanotubes
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Event Date: 
Mon, 04/29/2013 - 12:00pm - 1:00pm
Location: 
337 Towne Building

Ultimate Limit of Resistivity in Graphene and Carbon Nanotubes

Connected by conducting chemical bonding, low dimensional graphitic carbon nanomaterails such as graphene and nanotubes has been considered for many electronic applications. The unique electronic band structure of graphene lattice yields a linear energy dispersion relation where the Fermi velocity replaces the role of the speed of light, providing extremely fast charge carriers. Owing to this unusual electronic property, the resistivity of these graphitic nano-systems is extremely low. In this presentation, we will discuss the ultimate limit of resistivity of graphitic systems, both at low temperature and high temperature limits. In particular, we will discuss the phonon-limited intrinsic resistivity of graphene and nanotubes, which set the technologically relevant lower bound for many applications utilizing these materials for transparent and flexible electrodes applications and low dissipative interconnections.

Biography

Professor Philip Kim received his B.S in physics at Seoul National University in 1990 and received his Ph. D. in Applied Physics from Harvard University in 1999. He was Miller Postdoctoral Fellow in Physics from University of California, Berkeley during 1999-2001. In 2002, he joined in Department of Physics at Columbia University as a faculty member, where he is now Professor of Physics.

Professor Kim is a world leading scientist in the area of materials research. His research area is experimental condensed matter physics with an emphasis on physical properties and applications of nanoscale low-dimensional materials.  The unique properties of low dimensional systems are generally understood by considering enhanced quantum effects and increased correlations due to the reduction of available phase space. The focus of Dr. Kim’s group research is the mesoscopic investigation of transport phenomena, particularly, electric, thermal and thermoelectrical properties of low dimensional nanoscale materials. These materials include carbon nanotubes, organic and inorganic nanowires, 2-dimensional mesoscopic single crystals, and single organic molecules. The use of modern state-of-the-art semiconductor device fabrication techniques and the development of new methods of material synthesis/manipulation are essential parts of this research. We have initiated these efforts at Columbia University, and will continue to make innovations in microscopic experimental tools and methods, and to investigate the electric, thermal/thermoelectric transport properties of the nanoscale materials.

Professor Kim published more than 120 papers in professional journals which are well cited. Many of his papers are published in high impact journals such as Nature, Science and Physical Review Letters. Professor Kim received numerous honors and award including Loeb Lecture, Harvard (2012); Dresden Barkhausen Award (2011); Yunker Lecture, Oregon State University, (2011); Chapman Lecture, Rice University, (2009);  IBM Faculty Award (2009); Ho-Am Science Prize (2008); American Physical Society Fellow (2007); Columbia University Distinguished Faculty Award (2007); Recipient Scientific American 50 (2006); National Science Foundation Faculty Career Award (2004).  In addition, He has given more than 300 invited presentations as keynote speaker, plenary speakers, invited speakers in international and domestic conferences, colloquiums and department seminars.