SEMI OpenIR  > 半导体超晶格国家重点实验室
Molecular dynamics simulation for heat transport in thin diamond nanowires
Jiang JW; Wang BS; Wang JS; Jiang, JW (reprint author), Natl Univ Singapore, Dept Phys, Singapore 117542, Singaporephyjj@nus.edu.sg
2011
Source PublicationPHYSICAL REVIEW B
ISSN1098-0121
Volume83Issue:23Pages:235432
AbstractIt is found that the thermal conductivity in narrower DNW is lower and does not show obvious temperature dependence; a very small value (about 2.0 W/m/K) of thermal conductivity is observed in ultra-narrow DNW, which may be of potential applications in thermoelectric devices. These two phenomena are probably due to the dominant surface effect and phonon confinement effect in narrow DNW. Our simulation reveals a high anisotropy in the heat transport of DNW. Specifically, the thermal conductivity in DNW along [110] growth direction is about five times larger than that of [100] and [111] growth directions. The anisotropy is believed to root in the anisotropic group velocity for acoustic phonon modes in DNW along three different growth directions.
metadata_83半导体超晶格国家重点实验室
KeywordLattice Thermal-conductivity Silicon Nanowires Confinement Nanotubes
Subject Area半导体物理
Funding OrganizationNational University of Singapore[R-144-000-257-112]
Indexed BySCI
Language英语
Date Available2012-01-06
Document Type期刊论文
Identifierhttp://ir.semi.ac.cn/handle/172111/22697
Collection半导体超晶格国家重点实验室
Corresponding AuthorJiang, JW (reprint author), Natl Univ Singapore, Dept Phys, Singapore 117542, Singaporephyjj@nus.edu.sg
Recommended Citation
GB/T 7714
Jiang JW,Wang BS,Wang JS,et al. Molecular dynamics simulation for heat transport in thin diamond nanowires[J]. PHYSICAL REVIEW B,2011,83(23):235432.
APA Jiang JW,Wang BS,Wang JS,&Jiang, JW .(2011).Molecular dynamics simulation for heat transport in thin diamond nanowires.PHYSICAL REVIEW B,83(23),235432.
MLA Jiang JW,et al."Molecular dynamics simulation for heat transport in thin diamond nanowires".PHYSICAL REVIEW B 83.23(2011):235432.
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