AVS 61st International Symposium & Exhibition
    Nanometer-scale Science and Technology Monday Sessions
       Session NS+EN-MoA

Paper NS+EN-MoA7
Surface Plasmon-Mediated Gold Nanoparticle Deposition via Two Different Mechanisms

Monday, November 10, 2014, 4:00 pm, Room 304

Session: Nanophotonics and Plasmonics 
Presenter: Jingjing Qiu, University of Florida
Authors: J. Qiu, University of Florida
W.D. Wei, University of Florida
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Utilizing intrinsic surface properties to direct and control nanostructure growth on a large-scale surface is fundamentally interesting and holds great technological promise. We have developed a novel “bottom-up” approach to fabricating sub-15 nm Au nanoparticles on a nanostructured Ag surface via a chemical solution deposition by using localized surface plasmon resonance (SPR) excitation. Nanoparticle sizes were tunable between 3 to 10 nm by adjusting the deposition time utilizing the photothermal effects on a nanostructured Ag film surface. In addition, Au nanoparticles can be selectively deposited at the tip of a Ag bowtie nanostructure with the enhanced electric field.