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    Self-limited plasmonic welding of silver nanowire junctions

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    Type
    Article
    Authors
    Garnett, Erik C.
    Cai, Wenshan
    Cha, Judy J.
    Mahmood, Fakhruddin
    Connor, Stephen T.
    Greyson Christoforo, M.
    Cui, Yi cc
    McGehee, Michael D.
    Brongersma, Mark L.
    KAUST Department
    Electrical Engineering Program
    KAUST Grant Number
    KUS-C1-015-21
    KUS-I1-001-12
    Date
    2012-02-05
    Online Publication Date
    2012-02-05
    Print Publication Date
    2012-03
    Permanent link to this record
    http://hdl.handle.net/10754/594177
    
    Metadata
    Show full item record
    Abstract
    Nanoscience provides many strategies to construct high-performance materials and devices, including solar cells, thermoelectrics, sensors, transistors, and transparent electrodes. Bottom-up fabrication facilitates large-scale chemical synthesis without the need for patterning and etching processes that waste material and create surface defects. However, assembly and contacting procedures still require further development. Here, we demonstrate a light-induced plasmonic nanowelding technique to assemble metallic nanowires into large interconnected networks. The small gaps that form naturally at nanowire junctions enable effective light concentration and heating at the point where the wires need to be joined together. The extreme sensitivity of the heating efficiency on the junction geometry causes the welding process to self-limit when a physical connection between the wires is made. The localized nature of the heating prevents damage to low-thermal-budget substrates such as plastics and polymer solar cells. This work opens new avenues to control light, heat and mass transport at the nanoscale. © 2012 Macmillan Publishers Limited. All rights reserved.
    Citation
    Garnett EC, Cai W, Cha JJ, Mahmood F, Connor ST, et al. (2012) Self-limited plasmonic welding of silver nanowire junctions. Nat Mater 11: 241–249. Available: http://dx.doi.org/10.1038/nmat3238.
    Sponsors
    This publication was based on work supported by the Center for Advanced Molecular Photovoltaics (CAMP) (Award No KUS-C1-015-21), funded by King Abdullah University of Science and Technology (KAUST). Y.C. acknowledges support from KAUST Investigator Award (No. KUS-I1-001-12). We gratefully acknowledge valuable discussions with P. Nordlander on the optical coupling of metallic nanostructures. E.C.G. acknowledges partial support from the Global Climate and Energy Project at Stanford University.
    Publisher
    Springer Nature
    Journal
    Nature Materials
    DOI
    10.1038/nmat3238
    PubMed ID
    22306769
    ae974a485f413a2113503eed53cd6c53
    10.1038/nmat3238
    Scopus Count
    Collections
    Articles; Electrical and Computer Engineering Program

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