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Controllable oxidat...
Controllable oxidation of h-BN monolayer on Ir(111) studied by core-level spectroscopies
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Simonov, K. A. (author)
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- Vinogradov, Nikolay (author)
- Uppsala universitet,Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory,Yt- och gränsskiktsvetenskap
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- Ng, May Ling (author)
- Uppsala universitet,Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory,Yt- och gränsskiktsvetenskap
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Vinogradov, A. S. (author)
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- Mårtensson, Nils (author)
- Uppsala universitet,Yt- och gränsskiktsvetenskap
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- Preobrajenski, Alexei (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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(creator_code:org_t)
- Elsevier BV, 2012
- 2012
- English.
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In: Surface Science. - : Elsevier BV. - 0039-6028 .- 1879-2758. ; 606:3-4, s. 564-570
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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Abstract
Subject headings
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- 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.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- Photoelectron spectroscopy
- Near-edge X-ray absorption fine structure
- h-BN monolayer
- Graphene
- Oxidation
- Photoelectron spectroscopy
Publication and Content Type
- art (subject category)
- ref (subject category)
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