Berlin 2018 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 99: Poster Session: Transport
TT 99.10: Poster
Donnerstag, 15. März 2018, 15:00–19:00, Poster B
Charge transport in bottom-up synthesized graphene nanoribbon networks — •Zhou Zhou1,2, Nils Richter1,2, Alexander Tries1,2,3, Kamal Asadi3, Zongping Chen3, Akimitsu Narita3, Klaus Müllen3,4, and Mathias Kläui1,2 — 1Institut für Physik, Johannes Gutenberg Universität, Mainz, Germany — 2Graduate School of Excellence Materials Science in Mainz, Mainz, Germany — 3Max Planck Institute for Polymer Research, Mainz, Germany — 4Institut für Physikalische Chemie, Johannes Gutenberg-Universität, Mainz, Germany
Graphene nanoribbons (GNRs) attract attention due to physical phenomena resulting from their geometrical confinement which also depend crucially on their width and edge morphology [1]. Using GNR field-effect transistors, we perform a systematic study on the electronic properties of chemically synthesized and atomically perfect armchair GNRs with a width of 5 and 9 carbon atoms (aGNR5 and aGNR9)[2,3]. Our measurements reveal nuclear tunneling-assisted charge carrier hopping [4] as the dominant charge transport mechanism allowing us to apply a universal scaling law valid for charge transport in networks of both GNR structures over a large range of driving voltages and temperatures from room temperature down to 4 K [5].
Son et al., Phys.Rev.Lett.97, 216803 (2006).
Z. Chen et al., J.Am.Chem.Soc., 139, 9483-9486 (2017).
Z. Chen et al., J.Am.Chem.Soc., 139, 3635-3638 (2017).
K. Asadi et al., Nat.Commun. 4:1710 (2013).
N. Richter et al., (manuscript in preparation 2018)