Journal
APPLIED PHYSICS LETTERS
Volume 101, Issue 12, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4752736
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- Austrian Science Fund (FWF) [I 377] Funding Source: researchfish
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Current research efforts are aimed at controlling the electronic properties via doping graphene. Previously, dopant-induced changes in the Fermi velocity were observed to result in an effectively downshifted Raman peak below the G'-band for n-doped carbon nanotubes. However, in the case of N-doped graphene, we find that several Raman features vary depending upon both dopant concentration and its bonding environment. For instance, only pyridinic/pyrrolic dopants were observed to result in intense D/D'-bands with a concomitant downshift in the G'-band. Here, we correlate x-ray photoelectron measurements with Raman spectra to elucidate effects of dopant bonding configuration on vibrational properties of graphene. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4752736]
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