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Insights into the early growth of homogeneous single-layer graphene over NI-MO binary substrates

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Title
Insights into the early growth of homogeneous single-layer graphene over NI-MO binary substrates
Author(s)
Mark , Hermann Rummeli; Zeng M.; Melkhanova S.; Gorantla S.; Alicja Bachmatiuk; Fu L.; Yan C.; Oswald S.; Mendes R.G.; Makarov D.; Schmidt O.; Eckert J.
Subject
graphene, synthesis, nucleation, growth
Publication Date
2013-10
Journal
CHEMISTRY OF MATERIALS, v.25, no.19, pp.3880 - 3887
Publisher
AMER CHEMICAL SOC
Abstract
The employment of Ni-Mo films has recently been shown to yield strictly homogeneous single-layer graphene. In this study, we systematically investigate the different stages of nucleation and growth of graphene over Ni-Mo layers. The studies reveal that the Ni film breaks up and diffuses into the underlying Mo foil, forming a Ni-Mo intermetallic. Nucleation only occurs from Ni sites, and thus, the nucleation density can be controlled by the Ni film thickness. Both nucleation and growth of the graphene are shown to be susceptible to very efficient self-termination processes to the formation of molybdenum carbide, and this guarantees the formation of large area graphene that consists entirely of monolayer graphene. © 2013 American Chemical Society.
URI
https://pr.ibs.re.kr/handle/8788114/1231
DOI
10.1021/cm4020783
ISSN
0897-4756
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > 1. Journal Papers (저널논문)
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