Diameter dependence of low-energy electron and photon irradiation damage in single-walled carbon nanotubes

被引：36
|
作者：
Suzuki, Satoru [1 ]
Kobayashi, Yoshihiro [1 ]
机构：
[1] NTT Corp, NTT Basic Res Labs, Atsugi, Kanagawa 2430198, Japan
来源：
CHEMICAL PHYSICS LETTERS | 2006年 / 430卷 / 4-6期
基金：
日本科学技术振兴机构;
关键词：
D O I：
10.1016/j.cplett.2006.08.143
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Low-energy photon irradiation in an ultra-high vacuum, as well as low-energy electron irradiation, was found to damage single-walled carbon nanotubes, meaning that electronic excitations are solely responsible for the defect formation. The formation and healing of the defects were found to strongly depend on nanotube diameter; that is, thinner nanotubes are more easily damaged and hardly recovered. The results mean that the irradiation damage is prominent in a rolled up graphene sheet, but not in a planar one. The curvature-induced strain energy seems to be essentially important for the damage. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：370 / 374
页数：5
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