arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2203.15596cond-mat.mes-hallcond-mat.mtrl-sci
收藏

横向几何形状对Si和Ge纳米线热导率的影响

Effects of transverse geometry on the thermal conductivity of Si and Ge nanowires

Hadi Rezaie Heris, Movaffaq Kateb, Sigurdur I. Erlingsson, Andrei Manolescu

摘要:

我们探讨了几何形状对硅和锗纳米线的热导率(κ)的影响,长度在10-120 nm之间,直径可达5-6 nm。为此,我们进行分子动力学模拟与LAMMPS软件,使用Tersoff原子间势。我们考虑具有多边形截面的纳米线,我们讨论了横向几何形状对热导率的影响。我们还考虑管状(中空)纳米线和Si/Ge和Ge/Si的核/壳组合,并且我们比较了核/壳结构与分离的核和壳组分的热传输。

英文摘要:

We explore the effects of geometry on the thermal conductivity (kappa) of silicon and germanium nanowires, with lengths between 10-120 nm and diameters up to 5-6 nm. To this end we perform molecular dynamics simulations with the LAMMPS software, using Tersoff interatomic potentials. We consider nanowires with polygonal cross section and we discuss the effect of the transverse geometry on the thermal conductivity. We also consider tubular (hollow) nanowires and core/shell combinations of Si/Ge and Ge/Si, and we compare the heat transport of the core/shell structure with that of the separated core and shell components.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑