SPP 1459:  Graphen

• Subject Area: Physics ; Chemistry ; Geosciences ; Computer Science, Systems and Electrical Engineering
• Term: from 2010 to 2017
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 130170629

Graphene, the two-dimensional, single-atom thick layer of carbon is one of the materials, which are in the focus of current solid state research. The great interest is caused by the fascinating electronic and mechanical properties of graphene, which create research opportunities in fundamental and applied science and at the same time hold promise for new applications.
The interdisciplinary Priority Programme, which is comprised of scientists from physics, chemistry, materials science and electrical engineering aims at the development of fundamentals for the application of graphene in electronic devices. Different approaches for the synthesis of graphene such as epitaxial growth on silicon carbide and metal substrates, modification of organic layers and chemical synthesis of graphene nanostructures are investigated. As a prerequisite for the development of electronic devices, the specific electronic, structural, mechanical and chemical properties of graphene are studied within the Priority Programme.
Furthermore, methods for tailoring these properties by, e.g., functionalisation, are developed. Emphasis is also put on the interaction of graphene with other materials such as metals, insulators and semiconductors, which will be present in graphene devices in the form of contacts, substrates and gates.
Another important topic of the Priority Programme is the behaviour of charge carriers in graphene as well as the influence of additional factors like e.g. disorder on the carrier transport in mesoscopic and nano-scale graphene structures. Finally, graphene-based electronic devices and novel device concepts are studied. These topics are subject to experimental and theoretical investigations.

• DFG Programme: Priority Programmes
• International Connection: Italy, USA

Projects

• A graphene based EPR entangler (Applicant Gould, Charles )
• A metal route to graphene synthesis for electronic devices (Applicant Wintterlin, Joost )
• A molecular route to functional graphene nanostructures for electronic applications (Applicants Turchanin, Andrey ;  Weimann, Thomas )
• Atomistic theory of impurity and substrate effects in graphene (Applicants Lichtenstein, Alexander ;  Wehling, Tim )
• BN/Graphene/BN sandwiches for high mobility nanodevices (Applicant Gould, Charles )
• Carrier dynamics in graphene close to the Dirac point as well as under Landau quantization (Applicants Malic, Ermin ;  Winnerl, Stephan )
• Central facility for investigations of growth, structure, and electronic properties of graphene using low-energy electron microscopy (LEEM) (Applicant Seyller, Thomas )
• Chemistry Approach towards Graphene Nanoribbons with Defined Shape and Edge Structures (Applicant Müllen, Klaus )
• Concurrence of strong spin-orbit and exchange interactions in graphene (Applicant Rader, Oliver )
• Confining electrons in graphene on hexagonal boron nitride (Applicant Stampfer, Christoph )
• Coordination Funds (Applicant Seyller, Thomas )
• Decoupled Graphene Monolayers: Electrical Transport and Shot Noise (Applicant Haug, Rolf J. )
• Electromechanical properties of suspended graphene (Applicant von Oppen, Felix )
• Electronic dynamics in unoccupied states of graphene (Applicant Zacharias, Helmut )
• Epitaxial multilayers as substrates for the large area growth of graphene: Metal/YSZ/Si(111) and Diamond/Ir/YSZ/Si(111) (Applicant Schreck, Matthias )
• Equilibrium and non-equilibrium atomic scale characterization of metal contacts on epitaxial graphene (Applicants Schneider, M. Alexander ;  Wenderoth, Martin )
• Experimental and theoretical investigations of mono- and bilayer graphene nanoribbon band-to-band tunneling field-effect transistors (Applicant Knoch, Joachim )
• Graphene biosensors (Applicants Cattani-Scholz, Anna ;  Garrido, Jose A. )
• Graphene: electronic structure, transport and functionalization (Applicant Horn, Ph.D., Karsten )
• Graphene nano-flakes weakly coupled to the substrate: atomic structure, electronic states and manipulation (Applicants Fonin, Mikhail ;  Paulus, Beate ;  Voloshina, Elena )
• Graphene on atomically flat insulating substrates (Applicants Reichling, Michael ;  Schleberger, Marika )
• Interaction and disorder effects in graphene (Applicants Mirlin, Alexander ;  Ostrovsky, Pavel )
• Interaction-driven groundstates of few-layer graphene (Applicant Honerkamp, Carsten )
• Interaction effects and gateless patterning in epitaxial graphene on silicon carbide (0001) (Applicant Weber, Heiko B. )
• Interaction of surface acoustic waves with epitaxial graphene (Applicant Hernández-Mínguez, Alberto )
• Large area graphene for two dimensional electronics (Applicant Nickel, Norbert )
• Limits on graphene's charge carrier mobility and what we can do to overcome them --- interactions and disorder in epitaxial graphene on silicon carbide (Applicants Ast, Christian Reinhard ;  Gierz-Pehla, Isabella )
• Magnetic quantum ratchet in graphene and ratchet effects in graphene with a lateral superlattice (Applicants Eroms, Jonathan ;  Ganichev, Sergey ;  Weiss, Dieter )
• Magnetism and charge and spin transport in graphene nanostructures (Applicants Kläui, Mathias ;  Müllen, Klaus )
• Magnetism of Dirac Fermions and nanostructured graphene (Applicant Wilde, Marc )
• Manipulation and characterisation of structural properties of graphene (Applicant Kaiser, Ute )
• Manipulation of graphene by high energy ions (Applicant Schleberger, Marika )
• Metal catalyzed synthesis of graphene for the preparation of membranes with highest perfection at the atomic scale (Applicant Günther, Sebastian )
• Microscopic understanding of graphene based field effect transistors - towards high performance devices (Applicants Mertin, Wolfgang ;  Neumaier, Daniel )
• On-Surface Synthesis of Graphene-like Superlattices_sp/sp2-Graphdiynes (Applicant Ruben, Mario )
• Phonons, pseudo-magnetic fields, and their effects on quantum transport in graphene (Applicant Egger, Reinhold )
• Photon-assisted quantum coherent phenomena in graphene n-p and n-p-n junctions. Quantum transport in graphene based arrays of nanocrystals (Applicant Efetov, Konstantin )
• Plasmonic excitations and transport properties of graphene ribbons and dots (Applicant Tegenkamp, Christoph )
• Quantum transport in graphene - influence of disorder, electron-phonon interaction, electronic structure and functionalisation (Applicant Fehske, Holger )
• Quantum Transport in Graphene near the Dirac Point (Applicant Brouwer, Piet W. )
• Quasi-free-standing graphene (Applicant Busse, Carsten )
• Raman spectroscopy and low temperature magnetotransport studies on hybrid graphene devices (Applicant Smet, Jurgen H. )
• Scaled Graphene Nanoribbon Transistors for Ultra-High Frequency Applications (Applicants Pezoldt, Jörg ;  Schwierz, Frank )
• Scaling and Performance Potential of Bilayer Graphene Field Effect Transistors for Analog Applications (Applicant Lemme, Max Christian )
• Single electron pumping in graphene based nanostructures (Applicant Kästner, Bernd )
• Spin Qubits and Spin Decoherence in Graphene Quantum Dots (Applicant Trauzettel, Björn )
• Strained Graphene Field-Effect Transistor - Nano-electro-mechanical transistors for low power applications and locally adjustable electronic properties (Applicant Knoch, Joachim )
• Structurization and Functionalization of Epitaxial graphene on SiC (Applicant Starke, Ulrich )
• Tailoring of graphene's electronic and magnetic properties via edge functionalization (Applicant Burghard, Marko Klaus )
• The backside of graphene: functionalization by intercalation (Applicant Michely, Thomas Werner )
• Theory of epitaxial graphene (Applicant Pankratov, Oleg )
• Time resolved carrier dynamics in graphene (Applicants Kurz, Heinrich ;  Neumaier, Daniel )
• Vibrational properties of graphene nanostructures: Raman spectroscopy and density-functional theory (Applicant Maultzsch, Janina )
• Wave function mapping on graphene nanostructures (Applicant Liebmann, Marcus )
• Writing graphene: Ion-beam modification of thin polymer layers (Applicants Müller, Paul ;  Schmeißer, Dieter )

• Spokesperson: Professor Dr. Thomas Seyller
• Deputies: Professor Dr. Heinrich Kurz (†); Professor Dr. Björn Trauzettel