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
收藏
页码：115405 / 1
页数：6
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