2016
DOI: 10.1039/c6ra07546k
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Tuning the electronic structure of graphene through nitrogen doping: experiment and theory

Abstract: Tuning the electronic properties of graphene by doping atoms into its lattice makes it more applicable for electronic devices. We present a study of nitrogen doped graphene samples grown using chemical vapor deposition with a variety of synthesis conditions. Soft X-ray absorption and emission spectroscopy, which are techniques sensitive to the unoccupied and occupied partial electronic density of states, respectively, were used to study the electronic structure of N-doped graphene. Complementary fullpotential,… Show more

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Cited by 22 publications
(7 citation statements)
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References 68 publications
(141 reference statements)
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“…The charge transfer can be understood from the high work function of the Au(111) surface and the associated low binding energy of highest occupied molecular orbital (HOMO) levels of hydrocarbon structures atop, 47 along with the n-doping effect of graphitic N-subsituents. 48 Indeed, similar chargetransfer processes were observed in a number of N-doped molecules on Au(111). 49−51 In contrast, no charge transfer was detected in the previous works studying unsubstituted extended triangulenes on Au(111).…”
Section: Synthesissupporting
confidence: 82%
“…The charge transfer can be understood from the high work function of the Au(111) surface and the associated low binding energy of highest occupied molecular orbital (HOMO) levels of hydrocarbon structures atop, 47 along with the n-doping effect of graphitic N-subsituents. 48 Indeed, similar chargetransfer processes were observed in a number of N-doped molecules on Au(111). 49−51 In contrast, no charge transfer was detected in the previous works studying unsubstituted extended triangulenes on Au(111).…”
Section: Synthesissupporting
confidence: 82%
“…Doping of the Sulphur atom can increase the number of free-valence electrons and then allow the electronic conductivity and chemical reactivity to increase [2] . The reactivity zone may shift the Fermi level to above the Dirac point, and the Density of State, DOS near the Fermi level can be reduced [3], [4] allowing the opening gap between the conduction band and valence band. Such kind of an active zone can be increased by submitting a dopant such as a Sulphur atom [5], [6] .…”
Section: Introductionmentioning
confidence: 99%
“…The electronic properties of graphite can be tuned by perturbing the host lattice, including via functionalization, substitutional doping, , intercalation, , and changing the dimensions to the nanoscopic regime . Since 1841, graphite-intercalated compounds (GICs) have been extensively studied leading to their use in thermal and electrical conductors, catalysis, and energy storage .…”
Section: Introductionmentioning
confidence: 99%