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Evolutionary Kinetics of Graphene Formation on Copper

colorstone 添加于 2013-4-9 14:42 | 1243 次阅读 | 0 个评论

作者
Celebi K, Cole MT, Choi JW, Wyczisk F, Legagneux P, Rupesinghe N, Robertson J, Teo KBK, Park HG
摘要
$\"Abstract$
It has been claimed that graphene growth on copper by chemical vapor deposition is dominated by crystallization from the surface initially supersaturated with carbon adatoms, which implies that the growth is independent of hydrocarbon addition after the nucleation phase. Here, we present an alternative growth model based on our observations that oppose this claim. Our Gompertzian sigmoidal growth kinetics and secondary nucleation behavior support the postulate that the growth can be controlled by adsorption–desorption dynamics and the dispersive kinetic processes of catalytic dissociation and dehydrogenation of carbon precursors on copper.
Keywords:
Graphene; chemical vapor deposition; Gompertzian sigmoidal growth kinetics; secondary nucleation; dispersive kinetics; catalytic dissociation and dehydrogenation
详细资料
- 文献种类: Journal Article
- 期刊名称: Nano Letters
- 期刊缩写: Nano Lett.
- 期卷页: 2013年第13卷第3期 967-974页
- ISBN: 1530-6984
学科领域工程技术 » 材料科学
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