Tunable thermal rectification in silicon-functionalized graphene nanoribbons by molecular dynamics simulation
文献类型：期刊论文
| 作者 | Yuan, Kunpeng1; Sun, Mingman1; Wang, Zhaoliang1; Tang, Dawei1,2 |
| 刊名 | INTERNATIONAL JOURNAL OF THERMAL SCIENCES
 |
| 出版日期 | 2015-12-01 |
| 卷号 | 98页码:24-31 |
| 关键词 | Thermal rectification Molecular dynamics Graphene Silicon-functionalized |
| 英文摘要 | In this paper, we investigate thermal rectification in hybrid pristine and silicon-functionalized graphene nanoribbons (GNRs) using nonequilibrium molecular dynamics simulations. The heat flux is larger from the functionalized section to the pristine section than that in the opposite direction. It is found that thermal rectification can be tuned through the Si/C ratio and silicon distribution. A moderate Si/C ratio and patterned arrangement are preferable to obtain a higher rectification factor. The rectification factor is also sensitive to the temperature difference and the mean temperature. As the length of the system increases, the rectification factor decreases gradually due to the emerging of diffusive effect in nanoscale GNRs. Furthermore, we calculate the vibrational density of states to explain the underlying mechanism of thermal rectification. (C) 2015 Elsevier Masson SAS. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Thermodynamics ; Engineering, Mechanical |
| 研究领域[WOS] | Thermodynamics ; Engineering |
| 关键词[WOS] | CONDUCTIVITY ; HEAT |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000364896300002 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/112303]  |
| 专题 | 工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI） |
| 作者单位 | 1.China Univ Petr, Energy & Power Dept, Qingdao 266580, Peoples R China 2.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, Kunpeng,Sun, Mingman,Wang, Zhaoliang,et al. Tunable thermal rectification in silicon-functionalized graphene nanoribbons by molecular dynamics simulation[J]. INTERNATIONAL JOURNAL OF THERMAL SCIENCES,2015,98:24-31. |
| APA | Yuan, Kunpeng,Sun, Mingman,Wang, Zhaoliang,&Tang, Dawei.(2015).Tunable thermal rectification in silicon-functionalized graphene nanoribbons by molecular dynamics simulation.INTERNATIONAL JOURNAL OF THERMAL SCIENCES,98,24-31. |
| MLA | Yuan, Kunpeng,et al."Tunable thermal rectification in silicon-functionalized graphene nanoribbons by molecular dynamics simulation".INTERNATIONAL JOURNAL OF THERMAL SCIENCES 98(2015):24-31. |
入库方式： OAI收割
来源：工程热物理研究所
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