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Xe irradiation of graphene on Ir(111): From trapping to blistering

Herbig, Charlotte; Ahlgren, E. Harriet; Schroeder, Ulrike A.; Martinez-Galera, Antonio J.; Arman, Mohammad A LU ; Kotakoski, Jani; Knudsen, Jan LU ; Krasheninnikov, Arkady V. and Michely, Thomas (2015) In Physical Review B (Condensed Matter and Materials Physics) 92(8).
Abstract
Using x-ray photoelectron spectroscopy, thermal desorption spectroscopy, and scanning tunneling microscopy, we show that upon keV Xe+ irradiation of graphene on Ir(111), Xe atoms are trapped under the graphene. Upon annealing, aggregation of Xe leads to graphene bulges and blisters. The efficient trapping is an unexpected and remarkable phenomenon given the absence of chemical binding of Xe to Ir and to graphene, the weak interaction of a perfect graphene layer with Ir(111), as well as the substantial damage to graphene due to irradiation. By combining molecular dynamics simulations and density functional theory calculations with our experiments, we uncover the mechanism of trapping. We describe ways to avoid blister formation during... (More)
Using x-ray photoelectron spectroscopy, thermal desorption spectroscopy, and scanning tunneling microscopy, we show that upon keV Xe+ irradiation of graphene on Ir(111), Xe atoms are trapped under the graphene. Upon annealing, aggregation of Xe leads to graphene bulges and blisters. The efficient trapping is an unexpected and remarkable phenomenon given the absence of chemical binding of Xe to Ir and to graphene, the weak interaction of a perfect graphene layer with Ir(111), as well as the substantial damage to graphene due to irradiation. By combining molecular dynamics simulations and density functional theory calculations with our experiments, we uncover the mechanism of trapping. We describe ways to avoid blister formation during graphene growth, and also demonstrate how ion implantation can be used to intentionally create blisters without introducing damage to the graphene layer. Our approach may provide a pathway to synthesize new materials at a substrate-2D material interface or to enable confined reactions at high pressures and temperatures. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review B (Condensed Matter and Materials Physics)
volume
92
issue
8
publisher
American Physical Society
external identifiers
  • wos:000360064300005
  • scopus:84941071621
ISSN
1098-0121
DOI
10.1103/PhysRevB.92.085429
language
English
LU publication?
yes
id
01034588-329d-4019-8194-418a363fd5e2 (old id 7972234)
date added to LUP
2015-09-23 09:17:44
date last changed
2017-10-01 04:26:50
@article{01034588-329d-4019-8194-418a363fd5e2,
  abstract     = {Using x-ray photoelectron spectroscopy, thermal desorption spectroscopy, and scanning tunneling microscopy, we show that upon keV Xe+ irradiation of graphene on Ir(111), Xe atoms are trapped under the graphene. Upon annealing, aggregation of Xe leads to graphene bulges and blisters. The efficient trapping is an unexpected and remarkable phenomenon given the absence of chemical binding of Xe to Ir and to graphene, the weak interaction of a perfect graphene layer with Ir(111), as well as the substantial damage to graphene due to irradiation. By combining molecular dynamics simulations and density functional theory calculations with our experiments, we uncover the mechanism of trapping. We describe ways to avoid blister formation during graphene growth, and also demonstrate how ion implantation can be used to intentionally create blisters without introducing damage to the graphene layer. Our approach may provide a pathway to synthesize new materials at a substrate-2D material interface or to enable confined reactions at high pressures and temperatures.},
  articleno    = {085429},
  author       = {Herbig, Charlotte and Ahlgren, E. Harriet and Schroeder, Ulrike A. and Martinez-Galera, Antonio J. and Arman, Mohammad A and Kotakoski, Jani and Knudsen, Jan and Krasheninnikov, Arkady V. and Michely, Thomas},
  issn         = {1098-0121},
  language     = {eng},
  number       = {8},
  publisher    = {American Physical Society},
  series       = {Physical Review B (Condensed Matter and Materials Physics)},
  title        = {Xe irradiation of graphene on Ir(111): From trapping to blistering},
  url          = {http://dx.doi.org/10.1103/PhysRevB.92.085429},
  volume       = {92},
  year         = {2015},
}