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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
; ; ; ; ; and
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 (ACS)
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
2016-04-01 10:16:43
date last changed
2022-01-25 21:39:25
@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 (ACS)}},
  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}},
  doi          = {{10.1021/acs.jpcc.5b02390}},
  volume       = {{119}},
  year         = {{2015}},
}