NEWS   For NanoCentury



  • >
  •    NEWS   
  • >
  • Seminar
조회 수 11712 댓글 0
Extra Form

Graphene-based Materials and their Potential for Applications


Speaker : Prof. Rod Ruoff (Dept. of Mechanical Engineering and the Texas Materials Institute, The University of Texas at Austin))


Date &Time : 2009. 8. 24 (Mon), 14:00

Place : 응용공학동 신소재공학과 강의실 2427


Graphene-based Materials and their Potential for Applications


Thermal chemical vapor deposition has been used to grow graphene on copper substrates [1] and isotopic labeling (13C vs 12C)[2] to study the kinetics and mechanisms of the graphene growth on Cu. This talk presents aspects of a suggested path for obtaining large area growth of high quality graphene in ways compatible with methods of the semiconductor industry. In addition, I will present some details about ultracapacitors based on graphene[3], and use of graphene as a transparent but electrically conductive thin films [4] illustrating several possibilities for applications and thus transitioning of lab results to possible large scale manufacturing. Our top-down approaches [5,6] inspired physicists to study individual layers of graphite obtained by micromechanical exfoliation, and one of our current approaches has been to convert graphite to graphite oxide (GO), generate aqueous colloidal suspensions containing individual layers of GO (we call them ‘graphene oxide’), and to use these ‘graphene oxide sheets’ in a variety of ways, such as for making composites with polymers [7], silica [8], and ‘paper-like’ materials [9].


Let us discuss such things and others, and find ways to advance the borders of scientific and technological knowledge. Support of our work by DARPA, state of Texas, UT Austin, and prior support by NASA and the NSF, is appreciated. Ruoff Group publications are at .


1. Xuesong Li, Weiwei Cai, Jinho An, Seyoung Kim, Junghyo Nah, Dongxing Yang, Richard Piner, Aruna Velamakanni, Inhwa Jung, Emanuel Tutuc, Sanjay K. Banerjee, Luigi Colombo, Rodney S. Ruoff, Large-Area Synthesis of High-Quality and Uniform Graphene Films on Copper Foils, Science (2009), 324, 1312-1314.

2. Submitted to Nano Letters.

3. Meryl D. Stoller; Sungjin Park; Yanwu Zhu; Jinho An; Rodney S. Ruoff. Graphene-Based Ultracapacitors. Nano Letters (2008), 8 (10), 3498-3502.

4. Submitted to Nano Letters.

5. Lu XK, Yu MF, Huang H, and Ruoff RS, Tailoring graphite with the goal of achieving single sheets, Nanotechnology, 10, 269-272 (1999).

6. Lu XK, Huang H, Nemchuk N, and Ruoff RS, Patterning of highly oriented pyrolytic graphite by oxygen plasma etching, Applied Physics Letters, 75, 193-195 (1999).

7. Sasha Stankovich, Dmitriy A. Dikin, Geoffrey H. B. Dommett, Kevin M. Kohlhaas, Eric J. Zimney, Eric A. Stach, Richard D. Piner, SonBinh T. Nguyen and Rodney S. Ruoff, Graphene-based composite materials, Nature 442 (2006) 282-285.

8. Supinda Watcharotone, Dimitry A. Dikin, Sasha Stankovich, Richard Piner, Inhwa Jung, Geoffrey H. B. Dommett, Guennadi Evmenenko, Shang-En Wu, Shu-Fang Chen, Chuan-Pu Liu, SonBinh T. Nguyen, Rodney S. Ruoff. Graphene-Silica Composite Thin Films as Transparent Conductors. Nano Letters, 7(7), (2007), 1888-1892.

9. Dmitriy, A. Dikin, Sasha Stankovich, Eric J. Zimney, Richard D. Piner, Geoffrey H. B. Dommett, Guennadi Evmenenko, SonBinh T. Nguyen, Rodney S. Ruoff. Preparation and characterization of graphene oxide paper. Nature, 448, (2007), 457-460. ___________________________________________________________________________________________ Prior to joining The University of Texas at Austin as a Cockrell Family Regents Chair in Mechanical Engineering, Prof. Rod Ruoff served as Director of the Biologically Inspired Materials Institute at Northwestern University. He has been a ‘Visiting Chair Professor’ at Sungkyunkwan University in South Korea. He received his B.S. in Chemistry from the U. of Texas (Austin) and Ph.D. from the University of Illinois-Urbana. He was a Fulbright Fellow at the Max Planck Institute-Goettingen, Germany. From ‘89-’90, he was a Postdoctoral Fellow at the IBM T. J. Watson Research Center in New York. Prior to joining Northwestern in 2000, he was a Staff Scientist at the Molecular Physics Laboratory of SRI International and Associate Professor of Physics at Washington University. His research interests and activities include global environment and energy-related issues; synthesis and physical/chemical properties of nanostructures and composites; transitioning scientific breakthroughs to technology, and developing new tools for biomedical research. Prof. Ruoff has published 194 refereed journal articles in the fields of chemistry, physics, mechanics, & materials science. He is a founder of Graphene Energy, Inc., and the founder of Nanode, Inc.