Thermal conductivity of a new carbon nanotube analog: The diamond nanothread

Zhan, Haifei and Zhang, Gang and Zhang, Yingyan and Tan, V.B.C. and Bell, John M. and Gu, Yuantong (2016) Thermal conductivity of a new carbon nanotube analog: The diamond nanothread. Carbon, 98. pp. 232-237. ISSN 0008-6223


Abstract

Based on the non-equilibrium molecular dynamics simulations, we have studied the thermal conductivities of a novel ultra-thin one-dimensional carbon nanomaterial – diamond nanothread (DNT). Unlike single-wall carbon nanotube (CNT), the existence of the Stone-Wales (SW) transformations in DNT endows it with richer thermal transport characteristics. There is a transition from wave-dominated to particle-dominated transport region, which depends on the length of poly-benzene rings. However, independent of the transport region, strong length dependence in thermal conductivity is observed in DNTs with different lengths of poly-benzene ring. The distinctive SW characteristic in DNT provides more to tune the thermal conductivity not found in the homogeneous structure of CNT. Therefore, DNT is an ideal platform to investigate various thermal transport mechanisms at the nanoscale. Its high tunability raises the potential to design DNTs for different applications, such as thermal connection and temperature management.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Current - USQ Other
Faculty/School / Institute/Centre: Current - USQ Other
Date Deposited: 17 Sep 2020 04:11
Last Modified: 30 Sep 2020 01:28
Uncontrolled Keywords: Benzene rin; High tunability; Homogeneous structure; Length dependence; Non equilibrium molecular dynamic (NEMD)Temperature management; Thermal transport; Wave-dominated
Fields of Research (2008): 09 Engineering > 0912 Materials Engineering > 091299 Materials Engineering not elsewhere classified
Fields of Research (2020): 40 ENGINEERING > 4016 Materials engineering > 401699 Materials engineering not elsewhere classified
Socio-Economic Objectives (2008): B Economic Development > 85 Energy > 8505 Renewable Energy > 850599 Renewable Energy not elsewhere classified
Socio-Economic Objectives (2020): 17 ENERGY > 1708 Renewable energy > 170899 Renewable energy not elsewhere classified
Identification Number or DOI: https://doi.org/10.1016/j.carbon.2015.11.012
URI: http://eprints.usq.edu.au/id/eprint/39397

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