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Electron-Beam-Induced Fluorination Cycle for Long-Term Preservation of Graphene under Ambient Conditions
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- Duan, Tianbo (author)
- Uppsala universitet,Tillämpad materialvetenskap
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- Li, Hu, 1986- (author)
- Uppsala universitet,Tillämpad materialvetenskap,Shandong Univ, Sch Microelect, Shandong Technol Ctr Nanodevices & Integrat, Jinan 250101, Peoples R China.
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- Leifer, Klaus, 1965- (author)
- Uppsala universitet,Tillämpad materialvetenskap
- (creator_code:org_t)
- 2022-01-24
- 2022
- English.
- In: Nanomaterials. - : MDPI AG. - 2079-4991. ; 12:3
- Journal article (peer-reviewed)
Abstract
Subject headings
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- The aging in air inevitably results in the accumulation of airborne hydrocarbon contaminations on a graphene surface, which causes considerable difficulties in the subsequent application of graphene. Herein, we report an electron-beam-activated fluorination/defluorination cycle for achieving a long-term preservation of CVD graphene. After experiencing such cycle, the accumulation of airborne hydrocarbon on the graphene surfaces is strongly reduced, and the initial chemical status of graphene can be restored, which is confirmed by employing atomic force microscopy and X-ray photoelectron microscopy. Our reported approach provides an efficient method for the cleaning and long-term preservation of graphene, and it is particularly useful for graphene microscopy characterizations.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- graphene
- electron-beam-induced deposition
- fluorination
- airborne contamination
Publication and Content Type
- ref (subject category)
- art (subject category)
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