We present the use of nanoparticle surface chemistry to mediate the deposition of metals onto colloidal plasmonic nanoparticles in patterns that are controlled by a supramolecular assembly on the particles themselves. These assemblies may be tuned either by ligand functionality or driven to phase transitions via external stimuli. The solvent facing portion of these assemblies may also act a selection agent in recruiting specific metals to the existing colloid surface. Combining these properties, we demonstrate several key deposition motifs as well as explore both metal and substrate generality. We characterize this process and the resulting nanoparticle products using a combination of scanning probe microscopy, electorn microscopy, and nuclear magnetic resonance spectroscopy techniques. The optoelectronic impacts of the secondary metal and secondary metal morphology are also studied, and particularly their impact on the plasmonic properties of the resulting composite. <br/>

Optoelectronic performance of multimetallic nanoparticles synthesized via on-colloid lithography

256th National Meeting (2018)

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