Evolutionary Kinetics of Graphene Formation on Copper

被引：97

作者：

Celebi, Kemal ^{[1
]}

Cole, Matthew T. ^{[2
,4
]}

Choi, Jong Won ^{[1
]}

Wyczisk, Frederic ^{[3
]}

Legagneux, Pierre ^{[3
]}

Rupesinghe, Nalin ^{[4
]}

Robertson, John ^{[2
]}

Teo, Kenneth B. K. ^{[4
]}

Park, Hyung Gyu ^{[1
]}

机构：

[1] ETH, Inst Energy Technol, CH-8092 Zurich, Switzerland

[2] Univ Cambridge, Dept Engn, Elect Engn Div, Cambridge CB3 0FA, England

[3] Thales Res & Technol, F-91767 Palaiseau, France

[4] AIXTRON Ltd, Cambridge CB24 4FQ, England

来源：

NANO LETTERS | 2013年 / 13卷 / 03期

关键词：

Graphene; chemical vapor deposition; Gompertzian sigmoidal growth kinetics; secondary nucleation; dispersive kinetics; catalytic dissociation and dehydrogenation; CHEMICAL-VAPOR-DEPOSITION; CRYSTALLIZATION KINETICS; ISOTHERMAL CRYSTALLIZATION; CATALYTIC HYDROGENOLYSIS; BACTERIAL-GROWTH; DEHYDROGENATION; THERMODYNAMICS; NUCLEATION; ETHYLENE; ETHANE;

D O I：

10.1021/nl303934v

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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 dynamics and the dispersive kinetic processes of catalytic dissociation that the growth can be controlled by adsorption-desorption and dehydrogenation of carbon precursors on copper.

引用

页码：967 / 974

页数：8

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