Regensburg 2016 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
TT: Fachverband Tiefe Temperaturen
TT 58: Transport: Poster Session
TT 58.44: Poster
Mittwoch, 9. März 2016, 15:00–18:30, Poster D
Spin and Charge Transport in Tailored Carbon Allotropes such as Doped Graphene — •Marie-Luise Braatz1,2, Nils Richter1,2, Markus Rein1, Nils-Eike Weber3, Khaled Parvez3, Xinlian Feng4, Hermann Sachdev5, Klaus Müllen5, and Mathias Kläui1,2 — 1Institut für Physik, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany — 2Graduate School of Excellence Materials Science in Mainz (MAINZ), 55128 Mainz, Germany — 3BASF SE, 67056 Ludwigshafen, Germany — 4Molecular Functional Materials, Dresden University of Technology, 01069 Dresden, Germany — 5Max Planck Institute for Polymer Research, 55128 Mainz, Germany
Graphene exhibits extraordinary properties, however, pristine graphene does not have a band gap as needed for many applications. One of the routes to change that is chemical doping [1]. Here we investigate the effect of heteroatom-dopants on the structure and on the electronic and magnetic properties of graphene.
The growth conditions are varied to achieve different dopant concentrations and the ensuing materials are systematically characterized. Raman spectroscopy is employed to determine the structural effects of doping and transmission electron microscopy (TEM) can reveal the spatial distribution of dopants. Magnetoresistance effects and magnetization are probed to understand the correlation between the structural and magnetotransport properties [2]. By modifying its growth conditions, the electronic, magnetic and structural properties of graphene can thus be tuned.
H. Wang et al., ACS Catal. 2, 781 (2012).
M. Rein et al., ACS Nano 9, 1360 (2015).