TY  - JOUR
AU  - Sforzini, J.
AU  - Hapala, P.
AU  - Franke, M.
AU  - van Straaten, G.
AU  - Stöhr, A.
AU  - Link, S.
AU  - Soubatch, S.
AU  - Jelínek, P.
AU  - Lee, T.-L.
AU  - Starke, U.
AU  - Švec, M.
AU  - Bocquet, F. C.
AU  - Tautz, Frank Stefan
TI  - Structural and Electronic Properties of Nitrogen-Doped Graphene
JO  - Physical review letters
VL  - 116
IS  - 12
SN  - 1079-7114
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2016-02139
SP  - 126805
PY  - 2016
AB  - We investigate the structural and electronic properties of nitrogen-doped epitaxial monolayer graphene and quasifreestanding monolayer graphene on 6H−SiC(0001) by the normal incidence x-ray standing wave technique and by angle-resolved photoelectron spectroscopy supported by density functional theory simulations. With the location of various nitrogen species uniquely identified, we observe that for the same doping procedure, the graphene support, consisting of substrate and interface, strongly influences the structural as well as the electronic properties of the resulting doped graphene layer. Compared to epitaxial graphene, quasifreestanding graphene is found to contain fewer nitrogen dopants. However, this lack of dopants is compensated by the proximity of nitrogen atoms at the interface that yield a similar number of charge carriers in graphene.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000372729200014
C6  - pmid:27058093
DO  - DOI:10.1103/PhysRevLett.116.126805
UR  - https://juser.fz-juelich.de/record/807653
ER  -