Carbon nanotubes under electron irradiation: Stability of the tubes and their action as pipes for atom transport

被引：119

作者：

Banhart, F ^{[1
]}

Li, JX

Krasheninnikov, AV

机构：

[1] Univ Mainz, Inst Phys Chem, D-55099 Mainz, Germany

[2] Univ Helsinki, Accelerator Lab, FIN-00014 Helsinki, Finland

[3] Helsinki Univ Technol, Phys Lab, Espoo 02015, Finland

来源：

PHYSICAL REVIEW B | 2005年 / 71卷 / 24期

关键词：

D O I：

10.1103/PhysRevB.71.241408

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The production and migration of carbon interstitials in carbon nanotubes under electron irradiation is studied experimentally and theoretically. It is shown that the threshold for displacing carbon atoms and the defect production rate strongly depend on the diameter of the nanotubes. Multiwalled nanotubes shrink by a loss of atoms and by diffusion of interstitials through the inner hollow in the axial direction. Thus, experimental evidence is given that nanotubes can act as nanoscale pipes for the transport of atoms.

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页数：4

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