Abstract
A surface plasmon in a metal nanoparticle is the coherent oscillation of the conduction band electrons leading to both strong absorption and scattering as well as large local electromagnetic fields. Plasmonic nanoparticles therefore have the potential to induce electronic transitions in nearby materials. However, but fast internal relaxation limits the efficiency of such plasmonic mediated processes. In this talk, I will discuss our recent results of a new type of nanomaterial: hybrid nanoantennas comprised of plasmonic nanorods with photoconductive polymer coatings that were grown by photo-electrochemistry. The formation of the conductive polymer shell is selective to the nanorods, while the polymerization is enhanced by photoexcitation. In situ single pareticle dark-field scattering spectroscopy and simulations support an energy transfer mechanism with up to 50% efficiency. These hybrid nanoantennas combine the unmatched light harvesting properties of a plasmonic nanoparticles with the similarly unmatched device processability of polymersl.
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