Growth Mechanisms of Carbon Nanotubes and Graphene

被引：0

作者：

Ryou, Junga ^{[1
]}

Park, Jinwoo ^{[1
]}

Shin, Young-Han ^{[2
]}

Hwang, Chanyong ^{[3
]}

Hong, Suklyun ^{[1
]}

机构：

[1] Sejong Univ, Graphene Res Inst, Dept Phys, Seoul 143747, South Korea

[2] Univ Ulsan, Dept Phys, Ulsan 680749, South Korea

[3] Korea Res Inst Stand & Sci, Daejon 305340, South Korea

来源：

PHYSICS OF SEMICONDUCTORS: 30TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF SEMICONDUCTORS | 2011年 / 1399卷

基金：

新加坡国家研究基金会;

关键词：

carbon nanotube; graphene; growth mechanism; diffusion; nickel; copper; ab initio calculations; TOTAL-ENERGY CALCULATIONS; WAVE BASIS-SET;

D O I：

10.1063/1.3666603

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

To understand the initial stage in the growth of carbon nanotubes and graphene, we investigate the adsorption and diffusion of carbon atoms on the surfaces of metals such as nickel and copper. Adsorption geometries and binding energies of carbon atoms on the low-index metal surfaces and in their subsurfaces are considered. Then, the surface and subsurface diffusion barriers of a single carbon atom are calculated. On the basis of the results obtained, it is found that the carbon diffusion in nickel and copper plays an important role in the growth of these carbon-based materials.

引用

页数：2

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