Bandgap formation in graphene on Ir(111) through oxidation
(2013) In Applied Surface Science 267. p.74-76- Abstract
- A graphene monolayer on single crystal Ir(111) has been studied using angle-resolved photoemission spectroscopy (ARPES) before and after exposure to atomic oxygen. With increasing oxygen coverage the Dirac cone, centered on the K-point of the Brillouin zone, broadens and finally transforms to a parabolic rather than linear feature, introducing a pronounced energy bandgap at the Fermi level. The opening of a bandgap of at least 0.35 eV was observed at the oxygen exposure close to the saturation coverage. (C) 2012 Elsevier B. V. All rights reserved.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3671687
- author
- Schulte, Karina LU ; Vinogradov, Nikolay LU ; Ng, May Ling LU ; Mårtensson, Nils LU and Preobrajenski, Alexei LU
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Graphene, Oxidation, Electronic structure: photoelectron spectroscopy, Adsorbates: binding site geometry, Electronic structure
- in
- Applied Surface Science
- volume
- 267
- pages
- 74 - 76
- publisher
- Elsevier
- external identifiers
-
- wos:000314881900018
- scopus:84873715916
- ISSN
- 1873-5584
- DOI
- 10.1016/j.apsusc.2012.07.122
- language
- English
- LU publication?
- yes
- id
- 8ab1c852-b286-43fd-b100-c1208471796f (old id 3671687)
- date added to LUP
- 2016-04-01 10:06:29
- date last changed
- 2022-01-25 19:45:53
@article{8ab1c852-b286-43fd-b100-c1208471796f, abstract = {{A graphene monolayer on single crystal Ir(111) has been studied using angle-resolved photoemission spectroscopy (ARPES) before and after exposure to atomic oxygen. With increasing oxygen coverage the Dirac cone, centered on the K-point of the Brillouin zone, broadens and finally transforms to a parabolic rather than linear feature, introducing a pronounced energy bandgap at the Fermi level. The opening of a bandgap of at least 0.35 eV was observed at the oxygen exposure close to the saturation coverage. (C) 2012 Elsevier B. V. All rights reserved.}}, author = {{Schulte, Karina and Vinogradov, Nikolay and Ng, May Ling and Mårtensson, Nils and Preobrajenski, Alexei}}, issn = {{1873-5584}}, keywords = {{Graphene; Oxidation; Electronic structure: photoelectron spectroscopy; Adsorbates: binding site geometry; Electronic structure}}, language = {{eng}}, pages = {{74--76}}, publisher = {{Elsevier}}, series = {{Applied Surface Science}}, title = {{Bandgap formation in graphene on Ir(111) through oxidation}}, url = {{http://dx.doi.org/10.1016/j.apsusc.2012.07.122}}, doi = {{10.1016/j.apsusc.2012.07.122}}, volume = {{267}}, year = {{2013}}, }