期刊
CHEMICAL VAPOR DEPOSITION
卷 18, 期 7-9, 页码 185-190出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cvde.201206984
关键词
Graphene; Hexagonal; Nucleation; Shape transformation
资金
- National Science Foundation of China [50972067]
- Ministry of Education of China [20090002120019, 20090002120030]
The CVD of graphene on metal substrates serves as an ideal platform for studying the nucleation and growth of two-dimensional crystals. In this paper, the size distribution and shape transformation of graphene domains at early stages of CVD are investigated. The transformation of round-shaped graphene disks into hexagonal domains during atmospheric pressure (AP)CVD on copper substrates is identified. The critical transformation size from graphene disks to hexagonal domains is similar to 0.8?mu m2 according to the size distribution statistics.
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