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  • Author(s):
    Robert Hughes, Trevor Demille, Svetlana Neretina
    Abstract:

    The functionality of well-tailored nanomaterials can only be retained if they are robust to the environmental factors in which they operate. The inability of Cu to withstand such factors is largely responsible for its current status as a second-tier plasmonic nanomaterial. Herein, it is demonstrated that atomic layer deposition can be used as a pliable technique for the application of oxide coatings to substrate-based Cu nanostructures where suitably protected structures become robust to oxid…

    Date Published:
    2020-07
    Record Visibility:
    Public
  • Author(s):
    Robert Hughes, Sergei Rouvimov, Robert Neal, Trevor B. Demille, Svetlana Neretina
    Abstract:

    The seed-mediated growth of noble metal nanostructures with planar geometries requires the use of seeds lined with parallel stacking faults so as to provide a break in symmetry in an otherwise isotropic metal. Although such seeds are now routinely synthesized using colloidal pathways, equivalent pathways have not yet been reported for the fabrication of substrate-based seeds with the same internal defect structures. The challenge is not merely to form seeds with planar defects but to do so in…

    Date Published:
    2019-07
    Record Visibility:
    Public
  • Author(s):
    Svetlana Neretina
    Abstract:

    Substrate-supported plasmonic nanostructures are distinct from their colloidal counterparts, in that they are surrounded by an asymmetric dielectric environment composed of the substrate material and the surrounding ambient. Such environments inevitably lead to plasmonic resonances and near-fields that differ from those of solution-dispersed structures. The most straightforward method for fabricating substrate-based plasmonic nanostructures is through the solid-state dewetting of ultrathin fi…

    Date Published:
    2019-07
    Record Visibility:
    Public
  • Author(s):
    Svetlana Neretina
    Abstract:

    Substrate-supported plasmonic nanostructures are distinct from their colloidal counterparts, in that they are surrounded by an asymmetric dielectric environment composed of the substrate material and the surrounding ambient. Such environments inevitably lead to plasmonic resonances and near-fields that differ from those of solution-dispersed structures. The most straightforward method for fabricating substrate-based plasmonic nanostructures is through the solid-state dewetting of ultrathin fi…

    Date Published:
    2019-07
    Record Visibility:
    Public