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    Contacting nanowires and nanotubes with atomic precision for electronic transport

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    Type
    Article
    Authors
    Qin, Shengyong
    Hellstrom, Sondra
    Bao, Zhenan
    Boyanov, Boyan
    Li, An-Ping
    KAUST Grant Number
    KUS-C1-015-21
    Date
    2012-03-06
    Online Publication Date
    2012-03-06
    Print Publication Date
    2012-03-05
    Permanent link to this record
    http://hdl.handle.net/10754/597843
    
    Metadata
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    Abstract
    Making contacts to nanostructures with atomic precision is an important process in the bottom-up fabrication and characterization of electronic nanodevices. Existing contacting techniques use top-down lithography and chemical etching, but lack atomic precision and introduce the possibility of contamination. Here, we report that a field-induced emission process can be used to make local contacts onto individual nanowires and nanotubes with atomic spatial precision. The gold nano-islands are deposited onto nanostructures precisely by using a scanning tunneling microscope tip, which provides a clean and controllable method to ensure both electrically conductive and mechanically reliable contacts. To demonstrate the wide applicability of the technique, nano-contacts are fabricated on silicide atomic wires, carbon nanotubes, and copper nanowires. The electrical transport measurements are performed in situ by utilizing the nanocontacts to bridge the nanostructures to the transport probes. © 2012 American Institute of Physics.
    Citation
    Qin S, Hellstrom S, Bao Z, Boyanov B, Li A-P (2012) Contacting nanowires and nanotubes with atomic precision for electronic transport. Applied Physics Letters 100: 103103. Available: http://dx.doi.org/10.1063/1.3692585.
    Sponsors
    This research was conducted at the Center for Nanophase Materials Sciences, which is sponsored at Oak Ridge National Laboratory by the Division of Scientific User Facilities, U.S. Department of Energy. S.H. and Z.B. acknowledge support by the Center for Advanced Molecular Photovoltaics, Award KUS-C1-015-21, made by King Abdullah University of Science and Technology (KAUST). S.H. acknowledges support from the National Science Foundation Graduate Fellowship.
    Publisher
    AIP Publishing
    Journal
    Applied Physics Letters
    DOI
    10.1063/1.3692585
    ae974a485f413a2113503eed53cd6c53
    10.1063/1.3692585
    Scopus Count
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    Publications Acknowledging KAUST Support

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