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Chemically induced transformation of chemical vapour deposition grown bilayer graphene into fluorinated single-layer diamond

Author(s)
Bakharev, Pavel V.Huang, MingSaxena, ManavLee, Suk WooJoo, Se HunPark, Sung ODong, JichenCamacho-Mojica, Dulce C,Jin, SunghwanKwon, YoungwooBiswal, MandakiniDing, FengKwak, Sang KyuLee, ZonghoonRuoff, Rodney S.
Issued Date
2020-01
DOI
10.1038/s41565-019-0582-z
URI
https://scholarworks.unist.ac.kr/handle/201301/30600
Fulltext
https://www.nature.com/articles/s41565-019-0582-z
Citation
NATURE NANOTECHNOLOGY, v.15, no.1, pp.59 - 66
Abstract
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.
Publisher
Nature Publishing Group
ISSN
1748-3387
Keyword
CARBONHYDROGENATIONTEMPERATURERADIATIONULTRATHINFILM

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