Theoretical study of heat conduction in carbon nanotube hetero-junctions
文献类型：期刊论文
| 作者 | Ren, CL ; Xu, ZJ ; Zhang, W ; Li, Y ; Zhu, ZY ; Huai, P |
| 刊名 | PHYSICS LETTERS A
 |
| 出版日期 | 2010 |
| 卷号 | 374期号:17-18页码:6 |
| 关键词 | Carbon nanotube hetero-junction Thermal conductivity Point defects Phonon spectrum |
| ISSN号 | 0375-9601 |
| 通讯作者 | Zhang, W (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China |
| 英文摘要 | Thermal conductivity of single-wall carbon nanotubes with linear, "Y" and "X" hetero-junctions is studied using nonequilibrium molecular dynamics method. The three types of junctions with almost equal number of point defects show a similar decrease in thermal conductivity compared to that of the pristine carbon nanotube. Thermal conductivity of the nanotubes with different number of point defects is also calculated for a qualitative comparison. The thermal conductivity decreases with the defect number increasing. When the defects form an interface, they can cause a larger decrease in the thermal conductivity of CNT than when they are distributed dispersedly. The number of defects contained in the nanojunction determines the thermal conductivity to a great extent more than the geometrical forms of the nanojunctions. Phonon spectra of these junctions are also analyzed to explore the mechanism of degradation in thermal conductivity of these junctions. (C) 2010 Elsevier B.V. All rights reserved. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000276700700010 |
| 公开日期 | 2012-04-11 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/7091]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2004-2010年 |
| 推荐引用方式 GB/T 7714 | Ren, CL,Xu, ZJ,Zhang, W,et al. Theoretical study of heat conduction in carbon nanotube hetero-junctions[J]. PHYSICS LETTERS A,2010,374(17-18):6. |
| APA | Ren, CL,Xu, ZJ,Zhang, W,Li, Y,Zhu, ZY,&Huai, P.(2010).Theoretical study of heat conduction in carbon nanotube hetero-junctions.PHYSICS LETTERS A,374(17-18),6. |
| MLA | Ren, CL,et al."Theoretical study of heat conduction in carbon nanotube hetero-junctions".PHYSICS LETTERS A 374.17-18(2010):6. |
入库方式： OAI收割
来源：上海应用物理研究所
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