Defect-induced junctions between single- or double-wall carbon nanotubes and metal crystals

被引：21

作者：

Rodriguez-Manzo, Julio A. ^{[1
]}

Tolvanen, Antti ^{[2
]}

Krasheninnikov, Arkady V. ^{[2
,3
]}

Nordlund, Kai ^{[2
]}

Demortiere, Arnaud ^{[1
]}

Banhart, Florian ^{[1
]}

机构：

[1] Univ Strasbourg, CNRS, Inst Phys & Chim Mat, UMR 7504, Strasbourg, France

[2] Univ Helsinki, Div Mat Phys, FI-00014 Helsinki, Finland

[3] Aalto Univ, Dept Appl Phys, FI-00076 Aalto, Finland

来源：

NANOSCALE | 2010年 / 2卷 / 06期

基金：

芬兰科学院;

关键词：

ELECTRON; HETEROJUNCTIONS; NANOWIRES; SHAPE;

D O I：

10.1039/c0nr00098a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Interfaces between the ends of single-or double-wall carbon nanotubes and metal crystals (Fe, Co, Pd, and Pt) are established by electron irradiation with nanometre precision at metal-nanotube contact areas. Calculations of the bonding energies at the metal-nanotube interfaces confirm that the formation of these covalent junctions is energetically favourable in the presence of a certain concentration of structural defects in the nanotubes. The process may be endothermic or exothermic in comparison with the unconnected configuration, but in either case atomic defects in carbon nanotubes are a necessary condition for joining them with metals.

引用

页码：901 / 905

页数：5

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