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Controllable oxidation of h-BN monolayer on Ir(111) studied by core-level spectroscopies

Simonov, K. A.; Vinogradov, Nikolay LU ; Ng, May Ling LU ; Vinogradov, A. S.; Martensson, N. and Preobrajenski, Alexei LU (2012) In Surface Science 606(3-4). p.564-570
Abstract
The effect of atomic oxygen adsorption on the structure and electronic properties of monolayer hexagonal boron nitride (h-BN) grown on Ir(111) has been studied using near edge X-ray absorption fine structure spectroscopy (NEXAFS), photoelectron spectroscopy (PES), and low-energy electron diffraction (LEED). It has been shown that the oxidation of the h-BN monolayer occurs through a gradual substitution of N by O in the h-BN lattice. This process leads to the formation of defect sites corresponding to three different types of the B atom environment (BN3-xOx with x=1,2,3). The oxidation of the h-BN monolayer is very different from the case of graphene on Ir(111), where adsorption of atomic oxygen results mainly in the formation of epoxy... (More)
The effect of atomic oxygen adsorption on the structure and electronic properties of monolayer hexagonal boron nitride (h-BN) grown on Ir(111) has been studied using near edge X-ray absorption fine structure spectroscopy (NEXAFS), photoelectron spectroscopy (PES), and low-energy electron diffraction (LEED). It has been shown that the oxidation of the h-BN monolayer occurs through a gradual substitution of N by O in the h-BN lattice. This process leads to the formation of defect sites corresponding to three different types of the B atom environment (BN3-xOx with x=1,2,3). The oxidation of the h-BN monolayer is very different from the case of graphene on Ir(111), where adsorption of atomic oxygen results mainly in the formation of epoxy groups [J. Phys. Chem. C. 115, 9568 (2011)]. A post-annealing of the h-BN monolayer after oxygen exposure results in further destruction of the B N bonds and formation of a B2O3-like structure. (C) 2011 Elsevier B.V. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Photoelectron spectroscopy, Near-edge X-ray absorption fine structure, h-BN monolayer, Graphene, Oxidation
in
Surface Science
volume
606
issue
3-4
pages
564 - 570
publisher
Elsevier
external identifiers
  • wos:000300458600072
  • scopus:84855437399
ISSN
0039-6028
DOI
10.1016/j.susc.2011.11.031
language
English
LU publication?
yes
id
37a85e90-361c-4c5e-8888-c048cf0aedee (old id 2384455)
date added to LUP
2012-03-30 14:32:10
date last changed
2017-11-19 04:01:33
@article{37a85e90-361c-4c5e-8888-c048cf0aedee,
  abstract     = {The effect of atomic oxygen adsorption on the structure and electronic properties of monolayer hexagonal boron nitride (h-BN) grown on Ir(111) has been studied using near edge X-ray absorption fine structure spectroscopy (NEXAFS), photoelectron spectroscopy (PES), and low-energy electron diffraction (LEED). It has been shown that the oxidation of the h-BN monolayer occurs through a gradual substitution of N by O in the h-BN lattice. This process leads to the formation of defect sites corresponding to three different types of the B atom environment (BN3-xOx with x=1,2,3). The oxidation of the h-BN monolayer is very different from the case of graphene on Ir(111), where adsorption of atomic oxygen results mainly in the formation of epoxy groups [J. Phys. Chem. C. 115, 9568 (2011)]. A post-annealing of the h-BN monolayer after oxygen exposure results in further destruction of the B N bonds and formation of a B2O3-like structure. (C) 2011 Elsevier B.V. All rights reserved.},
  author       = {Simonov, K. A. and Vinogradov, Nikolay and Ng, May Ling and Vinogradov, A. S. and Martensson, N. and Preobrajenski, Alexei},
  issn         = {0039-6028},
  keyword      = {Photoelectron spectroscopy,Near-edge X-ray absorption fine structure,h-BN monolayer,Graphene,Oxidation},
  language     = {eng},
  number       = {3-4},
  pages        = {564--570},
  publisher    = {Elsevier},
  series       = {Surface Science},
  title        = {Controllable oxidation of h-BN monolayer on Ir(111) studied by core-level spectroscopies},
  url          = {http://dx.doi.org/10.1016/j.susc.2011.11.031},
  volume       = {606},
  year         = {2012},
}