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- Publisher Website: 10.1088/0957-4484/24/40/405201
- Scopus: eid_2-s2.0-84884220471
- WOS: WOS:000324516300003
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Article: Identification of a strong contamination source for graphene in vacuum systems
Title | Identification of a strong contamination source for graphene in vacuum systems |
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Authors | |
Issue Date | 2013 |
Citation | Nanotechnology, 2013, v. 24, n. 40 How to Cite? |
Abstract | To minimize parasitic doping effects caused by uncontrolled material adsorption, graphene is often investigated under vacuum. Here we report an entirely unexpected phenomenon occurring in vacuum systems, namely strong n-doping of graphene due to chemical species generated by common ion high-vacuum gauges. The effect - reversible upon exposing graphene to air - is significant, as doping rates can largely exceed 1012cm-2h-1, depending on pressure and the relative position of the gauge and the graphene device. It is important to be aware of this phenomenon, as its basic manifestation can be mistakenly interpreted as vacuum-induced desorption of p-dopants. © 2013 IOP Publishing Ltd. |
Persistent Identifier | http://hdl.handle.net/10722/262820 |
ISSN | 2023 Impact Factor: 2.9 2023 SCImago Journal Rankings: 0.631 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Caillier, Christophe | - |
dc.contributor.author | Ki, Dong Keun | - |
dc.contributor.author | Lisunova, Yuliya | - |
dc.contributor.author | Gaponenko, Iaroslav | - |
dc.contributor.author | Paruch, Patrycja | - |
dc.contributor.author | Morpurgo, Alberto F. | - |
dc.date.accessioned | 2018-10-08T02:47:10Z | - |
dc.date.available | 2018-10-08T02:47:10Z | - |
dc.date.issued | 2013 | - |
dc.identifier.citation | Nanotechnology, 2013, v. 24, n. 40 | - |
dc.identifier.issn | 0957-4484 | - |
dc.identifier.uri | http://hdl.handle.net/10722/262820 | - |
dc.description.abstract | To minimize parasitic doping effects caused by uncontrolled material adsorption, graphene is often investigated under vacuum. Here we report an entirely unexpected phenomenon occurring in vacuum systems, namely strong n-doping of graphene due to chemical species generated by common ion high-vacuum gauges. The effect - reversible upon exposing graphene to air - is significant, as doping rates can largely exceed 1012cm-2h-1, depending on pressure and the relative position of the gauge and the graphene device. It is important to be aware of this phenomenon, as its basic manifestation can be mistakenly interpreted as vacuum-induced desorption of p-dopants. © 2013 IOP Publishing Ltd. | - |
dc.language | eng | - |
dc.relation.ispartof | Nanotechnology | - |
dc.title | Identification of a strong contamination source for graphene in vacuum systems | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1088/0957-4484/24/40/405201 | - |
dc.identifier.scopus | eid_2-s2.0-84884220471 | - |
dc.identifier.volume | 24 | - |
dc.identifier.issue | 40 | - |
dc.identifier.spage | null | - |
dc.identifier.epage | null | - |
dc.identifier.eissn | 1361-6528 | - |
dc.identifier.isi | WOS:000324516300003 | - |
dc.identifier.issnl | 0957-4484 | - |