Abstract
We report a general method to assemble nanoparticle arrays inside inorganic nanotubes by introducing a nanoparticle solution into the nanotube nanochannels. We demonstrate that the size matching between nanotubes and nanoparticles may be used to form one-dimensional nanoparticle assemblies of variable sizes and configurations. Dark field scattering spectroscopy studies show large splitting of the resonance energy of the gold nanoparticle assembly under illumination with light with longitudinal or transverse polarization, indicating strong interparticle plasmon resonance coupling.
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