Past Event: Oden Institute Seminar

Graphene-based Materials

Rod Ruoff, Professor, Cockrell Family Regents Chair, The University of Texas at Austin

Abstract

Our top-down approaches [1,2] inspired physicists to study individual layers of graphite obtained by micromechanical exfoliation, but our current approaches include growth on metal substrates and judicious use of isotopic labeling (13C vs 12C)[3] to study the kinetics and mechanisms of deposition of large-area graphene and few layer graphene on metal substrates.[4] This talk present our 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 highlights of published work on polymer matrix composites with graphene as filler[5], on ultracapacitors based on graphene[6], on paper-like materials based on graphene[7], on the use of 13C-labeled graphite (and 12C-pure graphite and graphene) in a variety of research areas[8], and on use of graphene as transparent but electrically conductive thin films[9]. Support of our work by DARPA, state of Texas, UT Austin, and prior support by NASA and the NSF, is appreciated. (See also papers on http://bucky-central.me.utexas.edu/publications.htm such as #139,146, 150,155, 160, 164, 166, 168, 169, 174, 179-182, 184-192, etc. ) 1. Lu XK, Yu MF, Huang H, and Ruoff RS, Tailoring graphite with the goal of achieving single sheets, Nanotechnology, 10, 269-272 (1999). 2. 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). 3. Submitted. 4. 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, published online in Science on Science Express (May 7, 2009), hardcopy to appear in Science soon. 5. 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. 6. Meryl D. Stoller; Sungjin Park; Yanwu Zhu; Jinho An; Rodney S. Ruoff. Graphene-Based Ultracapacitors. Nano Letters (2008), 8 (10), 3498-3502. 7. 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. 8. Cai, Weiwei; Piner, Richard D.; Stadermann, Frank J.; Park, Sungjin; Shaibat, Medhat A.; Ishii, Yoshitaka; Yang, Dongxing; Velamakanni, Aruna; An, Sung Jin; Stoller, Meryl; An, Jinho; Chen, Dongmin; Ruoff, Rodney S.. Synthesis and Solid-State NMR Structural Characterization of 13C-Labeled Graphite Oxide. Science (2008), 321(5897), 1815-1817. 9. 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.