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题名: Functionalization and densification of inter-bundle interfaces for improvement in electrical and thermal transport of carbon nanotube fibers
作者: Qiu, L; Wang, XT; Tang, DW; Zheng, XH; Norris, PM; Wen, DS; Zhao, JN(赵静娜); Zhang, XH(张骁骅); Li, QW(李清文)
通讯作者: Tang, DW ; Zheng, XH
刊名: CARBON
发表日期: 2016
DOI: 10.1016/j.carbon.2016.04.043
卷: 105
收录类别: SCI ; EI
文章类型: 期刊论文
部门归属: 先进材料研究部
英文摘要: Electrical and thermal management in nanodevices by means of carbon nanotube is highly promising. One main challenge toward CNT-based nanoscale electrical and thermal management devices is the development of effective strategies for reducing the bundle-bundle interface resistance. Here we report a novel strategy, based on the densification of CNT bundles and the functionalization of inter-bundle interfaces for effectively enhanced interfacial electrical and thermal transport. The densification is realized by utilizing the local electrostatic cohesion; and the functionalization is realized by the interface-decorated functional groups. Experiments and theoretical analysis demonstrated obviously enhanced interfacial electrical and thermal conductance originates from: (1) local Coulomb electrostatic cohesion between CNT bundles due to surface-induced dipole moments. This effect can promote both electrical and thermal conductance nearly 2.8 times higher than non-functionalized counterpart. (2) Increased interfacial electron transport channels and thermal vibrations due to surface-decorated functional groups. This effect can bring about up to 75% and 95% improvement for thermal and electrical conductance, respectively. This study provides a new methodology for tunable operation of electrical and thermal properties at inter-bundle interfaces and guidance for design of CNT-based electrical and thermal management devices. (C) 2016 Elsevier Ltd. All rights reserved.
关键词[WOS]: INDUCED TUNNELING CONDUCTION ; RAMAN-SPECTROSCOPY ; GRAPHITE ; YARNS ; HEAT ; NETWORKS ; GRAPHENE ; SOLVENTS ; LONG
语种: 英语
JCR小类分区: 一区
WOS记录号: WOS:000376607200029
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinano.ac.cn/handle/332007/4731
Appears in Collections:先进材料研究部_李清文团队_期刊论文

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Recommended Citation:
Qiu, L,Wang, XT,Tang, DW,et al. Functionalization and densification of inter-bundle interfaces for improvement in electrical and thermal transport of carbon nanotube fibers[J]. CARBON,2016,105.
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