Graphene and 2D materials

In addition to molecular materials, our research activities also address the growth, structure, and electronic properties of graphene and other 2D materials using low-temperature scanning probe microscopy (STM / ncAFM) and spectroscopy techniques (tunneling / force spectroscopy) in ultra-high vacuum.

Recently, we studied structural and electronic aspects of non-covalently and covalently functionalized graphene by high-resolution scanning probe microscopy. This includes studies on epitaxial graphene grown on metals and SiC(0001). Through controlled functionalization, we can manipulate the physical and chemical properties of graphene and study the interaction of molecules and metal clusters with graphene. This research activities are part of the SFB 953.

 

AFM measurement in ambient condition of a free-standing graphene membrane on SiC(0001) [ACS NANO 2013]

Selected publications:

• Gateless patterning of epitaxial graphene by local intercalation
  C. Sorger, S. Hertel, J. Jobst, C. Steiner, K. Meil, K. Ullmann, A. Albert, Y. Wang, M. Krieger, J. Ristein,
  S. Maier, H. Weber
  Nanotechnology 26, 025302 (2015)
• Graphene-Templated Growth of Pd Nanoclusters
  K. Gotterbarm. C. Steiner, C. Bronnbauer, U. Bauer, H.-P. Steinrück, S. Maier*, Ch. Papp*
  J. Phys. Chem. C, 118, 29, 15934–15939 (2014)
• Robust Graphene Membranes in a Silicon Carbide Frame
  D. Waldmann, B. Butz, S. Bauer, J.M. Englert, J. Jobst, K. Ullmann, F. Fromm, M. Ammon, M. Enzelberger, A. Hirsch, S. Maier, P. Schmuki, Th. Seyller, E. Spiecker, and H.B. Weber
  ACS Nano, 7 (5), 4441–4448 (2013)