Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Growth of graphene monolayer by “internal solid-state carbon source” : Electronic structure, morphology and Au intercalation. / Zhizhin, E. V.; Pudikov, D. A.; Rybkin, A. G.; Petukhov, A. E.; Zhukov, Y. M.; Shikin, A. M.
в: Materials and Design, Том 104, 15.08.2016, стр. 284-291.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Growth of graphene monolayer by “internal solid-state carbon source”
T2 - Electronic structure, morphology and Au intercalation
AU - Zhizhin, E. V.
AU - Pudikov, D. A.
AU - Rybkin, A. G.
AU - Petukhov, A. E.
AU - Zhukov, Y. M.
AU - Shikin, A. M.
N1 - Publisher Copyright: © 2016 Elsevier Ltd
PY - 2016/8/15
Y1 - 2016/8/15
N2 - Synthesis of a graphene monolayer atop Ni(111) film deposited on HOPG using method of “internal solid-state carbon source” due to low-temperature segregation of carbon atoms through Ni film from the Ni/HOPG interface was studied by core level and valence band photoelectron spectroscopy. The atomic structure and morphology were studied by STM. It was established that the synthesis of graphene occurs via a stage of transformation from the surface carbide phase (with stoichiometry Ni 2 C) as a result of the surface carbide decomposition. We consider that such transformation is a necessary stage of the graphene synthesis. We have shown that the method of “solid-state carbon source” indeed results in a graphene monolayer formation on top of Ni film. A graphene monolayer begins to form even under annealing at 180 °C. Formation of practically full graphene covering with well-ordered structure takes place even at temperature of 260–270 °C. The formed graphene is strongly coupled to the Ni substrate. STM images show formation of well-ordered atomic hexagonal surface structure characteristic for graphene monolayer. Intercalation of Au atoms leads to formation of the p(9 × 9) superstructure and blocks strong coupling. It testifies that the main part of the surface is covered by epitaxial graphene on Ni.
AB - Synthesis of a graphene monolayer atop Ni(111) film deposited on HOPG using method of “internal solid-state carbon source” due to low-temperature segregation of carbon atoms through Ni film from the Ni/HOPG interface was studied by core level and valence band photoelectron spectroscopy. The atomic structure and morphology were studied by STM. It was established that the synthesis of graphene occurs via a stage of transformation from the surface carbide phase (with stoichiometry Ni 2 C) as a result of the surface carbide decomposition. We consider that such transformation is a necessary stage of the graphene synthesis. We have shown that the method of “solid-state carbon source” indeed results in a graphene monolayer formation on top of Ni film. A graphene monolayer begins to form even under annealing at 180 °C. Formation of practically full graphene covering with well-ordered structure takes place even at temperature of 260–270 °C. The formed graphene is strongly coupled to the Ni substrate. STM images show formation of well-ordered atomic hexagonal surface structure characteristic for graphene monolayer. Intercalation of Au atoms leads to formation of the p(9 × 9) superstructure and blocks strong coupling. It testifies that the main part of the surface is covered by epitaxial graphene on Ni.
KW - Carbide phase
KW - Graphene
KW - Intercalation
KW - Segregation
KW - Synthesis
UR - http://www.scopus.com/inward/record.url?scp=84990211569&partnerID=8YFLogxK
U2 - 10.1016/j.matdes.2016.04.091
DO - 10.1016/j.matdes.2016.04.091
M3 - Article
VL - 104
SP - 284
EP - 291
JO - Materials and Design
JF - Materials and Design
SN - 0261-3069
ER -
ID: 7589254