Journal
NATURE NANOTECHNOLOGY
Volume 15, Issue 1, Pages 59-+Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/s41565-019-0582-z
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Funding
- Institute for Basic Science (IBS) [IBS-R019-D1, IBS-R019-D1] Funding Source: Medline
- National Research Foundation of Korea [IBS-R019-D1-2020-A00] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The fluorination of graphene sheets in bilayer graphene grown by chemical vapour deposition on a single-crystal CuNi(111) surface results in a fluorinated diamond monolayer. Notwithstanding the numerous density functional studies on the chemically induced transformation of multilayer graphene into a diamond-like film carried out to date, a comprehensive convincing experimental proof of such a conversion is still lacking. We show that the fluorination of graphene sheets in Bernal (AB)-stacked bilayer graphene grown by chemical vapour deposition on a single-crystal CuNi(111) surface triggers the formation of interlayer carbon-carbon bonds, resulting in a fluorinated diamond monolayer ('F-diamane'). Induced by fluorine chemisorption, the phase transition from (AB)-stacked bilayer graphene to single-layer diamond was studied and verified by X-ray photoelectron, UV photoelectron, Raman, UV-Vis and electron energy loss spectroscopies, transmission electron microscopy and density functional theory calculations.
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