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    Electrical Contact Resistance at the Carbon Nanotube/Pd and Carbon Nanotube/Al Interfaces in End-Contact by First-Principles Calculations

    Source: Journal of Electronic Packaging:;2011:;volume( 133 ):;issue: 002::page 20908
    Author:
    Feng Gao
    ,
    Jianmin Qu
    ,
    Matthew Yao
    DOI: 10.1115/1.4004095
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Reported in this paper is a quantum mechanics study on the electronic structure and contact resistance at the interfaces formed when an open-end single-walled carbon nanotube (CNT) is in end-contact with aluminum (Al) and palladium (Pd), respectively. The electronic structures are computed using a density functional theory (DFT), and the transmission coefficient is calculated using a nonequilibrium Green’s function (NEGF) in conjunction with the DFT. The current–voltage relation of the simulating cell is obtained by using the Landauer–Buttiker formula, from which the contact resistance can be determined. Our results show that the electronic structure and electron transport behavior are strongly dependent on the electrode. It is found that the CNT/Pd interface has a weaker bond than the CNT/Al interface. However, the CNT/Pd interface shows a lower electrical contact resistance.
    keyword(s): Carbon nanotubes , Contact resistance , Metals , Electrodes AND Electron transport ,
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      Electrical Contact Resistance at the Carbon Nanotube/Pd and Carbon Nanotube/Al Interfaces in End-Contact by First-Principles Calculations

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/145804
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    contributor authorFeng Gao
    contributor authorJianmin Qu
    contributor authorMatthew Yao
    date accessioned2017-05-09T00:43:11Z
    date available2017-05-09T00:43:11Z
    date copyrightJune, 2011
    date issued2011
    identifier issn1528-9044
    identifier otherJEPAE4-26313#020908_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/145804
    description abstractReported in this paper is a quantum mechanics study on the electronic structure and contact resistance at the interfaces formed when an open-end single-walled carbon nanotube (CNT) is in end-contact with aluminum (Al) and palladium (Pd), respectively. The electronic structures are computed using a density functional theory (DFT), and the transmission coefficient is calculated using a nonequilibrium Green’s function (NEGF) in conjunction with the DFT. The current–voltage relation of the simulating cell is obtained by using the Landauer–Buttiker formula, from which the contact resistance can be determined. Our results show that the electronic structure and electron transport behavior are strongly dependent on the electrode. It is found that the CNT/Pd interface has a weaker bond than the CNT/Al interface. However, the CNT/Pd interface shows a lower electrical contact resistance.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleElectrical Contact Resistance at the Carbon Nanotube/Pd and Carbon Nanotube/Al Interfaces in End-Contact by First-Principles Calculations
    typeJournal Paper
    journal volume133
    journal issue2
    journal titleJournal of Electronic Packaging
    identifier doi10.1115/1.4004095
    journal fristpage20908
    identifier eissn1043-7398
    keywordsCarbon nanotubes
    keywordsContact resistance
    keywordsMetals
    keywordsElectrodes AND Electron transport
    treeJournal of Electronic Packaging:;2011:;volume( 133 ):;issue: 002
    contenttypeFulltext
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