Controllable Synthesis of Single-Crystal Monolayer Graphene on Copper Foils by Low-Pressure Chemical Vapor Deposition

~50 μm single crystal graphene with hexagonal flower shape was synthesized on copper foils by low pressure chemical vapor deposition (LPCVD). The strong influence of Cu foils annealing on suppressing the nucleation of graphene was observed. Scanning electron microscopy (SEM), Optical microscopy (OM)...

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Bibliographic Details
Published in:Key engineering materials 2013-07, Vol.562-565, p.79-84
Main Authors: Zhang, Chao, Guo, Lei, Wang, Lan Xi, Chen, Xue Kang, Bai, Xiao Hang, Gao, Hui, Cao, Sheng Zhu, He, Yong Min
Format: Article
Language:English
Subjects:
Annealing
ANNEALING PROCESSES
CHEMICAL VAPOR DEPOSITION
Copper
FOIL
Foils
Graphene
HIGH VACUUM
MICA
Monolayers
NUCLEATION
Retarding
Single crystals
VAPOR DEPOSITION
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Summary:~50 μm single crystal graphene with hexagonal flower shape was synthesized on copper foils by low pressure chemical vapor deposition (LPCVD). The strong influence of Cu foils annealing on suppressing the nucleation of graphene was observed. Scanning electron microscopy (SEM), Optical microscopy (OM), and Raman spectrum showed that single crystal graphene as grown was monolayer with high quality. Suppressing nucleation through an annealing procedure offers an promising way to grow large-scale single crystal graphene controllably.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.562-565.79