Utilizing intrinsic surface properties to direct and control nanostructure growth on nanoscale surface is fundamentally interesting and holds great technological promise. We have developed a novel �bottom-up� approach to fabricating Au nanoparticles on a Ag nanobowtie via a chemical solution deposition by using localized surface plasmon resonance (SPR) excitation. Surprisingly the Au nanoparticles were founded to be selectively placed at the junction between the individual Ag nanoprisms. The deposition location is consistent with the strong SPR-enhanced EM field distribution as predicted from the numerical simulation. Moreover, how does the enhanced SPR EM field involve in molecular dissociation will be discussed.

Surface plasmon mediated selective deposition of Au nanoparticles on Ag nanobowtie

247th National Meeting (2014)

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