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Evolution of CuI/Graphene/Ni(111) System during Vacuum Annealing

Generaloy, Alexander V.; Simonov, Konstantin LU ; Vinogradov, Nikolay A.; Zagrebina, Elena M.; Martensson, Nils; Preobrajenski, Alexei LU and Vinogradoy, Alexander S. (2015) In Journal of Physical Chemistry C 119(22). p.12434-12444
Abstract
We present a combined core-level spectroscopy and low-energy electron diffraction study of the evolution of thin CuI layers on graphene/Ni(111) during annealing. It has been found that the annealing of the CuI/graphene/Ni(111) system up to 160 degrees C results in the formation of an ordered CuI overlayer with a (root 3 x root 3) R30 degrees structure on top of the graphene surface. At annealing temperatures of about 180 degrees C or higher, the CuI overlayer decomposes with a simultaneous intercalation of Cu and I atoms underneath the graphene monolayer on Ni(111). Nearly complete intercalation of graphene by Cu and I atoms can be achieved by deposition of about 20 angstrom of CuI, followed by annealing at 200 degrees C. The intercalated... (More)
We present a combined core-level spectroscopy and low-energy electron diffraction study of the evolution of thin CuI layers on graphene/Ni(111) during annealing. It has been found that the annealing of the CuI/graphene/Ni(111) system up to 160 degrees C results in the formation of an ordered CuI overlayer with a (root 3 x root 3) R30 degrees structure on top of the graphene surface. At annealing temperatures of about 180 degrees C or higher, the CuI overlayer decomposes with a simultaneous intercalation of Cu and I atoms underneath the graphene monolayer on Ni(111). Nearly complete intercalation of graphene by Cu and I atoms can be achieved by deposition of about 20 angstrom of CuI, followed by annealing at 200 degrees C. The intercalated graphene layer is p-doped due to interfacial iodine atoms. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physical Chemistry C
volume
119
issue
22
pages
12434 - 12444
publisher
The American Chemical Society
external identifiers
  • wos:000355891600035
  • scopus:84930958825
ISSN
1932-7447
DOI
10.1021/acs.jpcc.5b02390
language
English
LU publication?
yes
id
81ba3caf-ee9c-4546-b21c-ba1c6a64bb36 (old id 7605052)
date added to LUP
2015-07-22 09:55:59
date last changed
2017-04-06 08:12:35
@article{81ba3caf-ee9c-4546-b21c-ba1c6a64bb36,
  abstract     = {We present a combined core-level spectroscopy and low-energy electron diffraction study of the evolution of thin CuI layers on graphene/Ni(111) during annealing. It has been found that the annealing of the CuI/graphene/Ni(111) system up to 160 degrees C results in the formation of an ordered CuI overlayer with a (root 3 x root 3) R30 degrees structure on top of the graphene surface. At annealing temperatures of about 180 degrees C or higher, the CuI overlayer decomposes with a simultaneous intercalation of Cu and I atoms underneath the graphene monolayer on Ni(111). Nearly complete intercalation of graphene by Cu and I atoms can be achieved by deposition of about 20 angstrom of CuI, followed by annealing at 200 degrees C. The intercalated graphene layer is p-doped due to interfacial iodine atoms.},
  author       = {Generaloy, Alexander V. and Simonov, Konstantin and Vinogradov, Nikolay A. and Zagrebina, Elena M. and Martensson, Nils and Preobrajenski, Alexei and Vinogradoy, Alexander S.},
  issn         = {1932-7447},
  language     = {eng},
  number       = {22},
  pages        = {12434--12444},
  publisher    = {The American Chemical Society},
  series       = {Journal of Physical Chemistry C},
  title        = {Evolution of CuI/Graphene/Ni(111) System during Vacuum Annealing},
  url          = {http://dx.doi.org/10.1021/acs.jpcc.5b02390},
  volume       = {119},
  year         = {2015},
}