Thermal conductivity of Y-junction carbon nanotubes

被引：65

作者：

Cummings, A ^{[1
]}

Osman, M

Srivastava, D

Menon, M

机构：

[1] Washington State Univ, Sch Elect Engn & Comp Sci, Pullman, WA 99164 USA

[2] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA

[3] Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA

[4] Univ Kentucky, Ctr Computat Sci, Lexington, KY 40506 USA

来源：

PHYSICAL REVIEW B | 2004年 / 70卷 / 11期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1103/PhysRevB.70.115405

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The thermal conductivity of a Y-junction carbon nanotube with a (14,0) trunk splitting into two (7,0) branches has been investigated using a molecular dynamics approach. It has been found that the thermal conductivity of the Y-junction nanotube is less than that of a corresponding straight (14,0) nanotube, due to lattice defects in the form of nonhexagonal carbon rings at the junction. These lattice defects result in a discontinuity in the temperature profile of the Y-junction nanotube. Defects that were introduced to a straight (14,0) nanotube resulted in a similar discontinuity in the temperature profile.

引用

页码：115405 / 1

页数：6

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