In this work, we report novel methods to produce arrays of nanoparticles, either as continuous or as isolated supercrystals made with plasmonic nanoparticles. These macroscale organizations were created via confinement controlled drying and spin coating. SERS studies on the supercrystals shape and size were conducted. Moreover, the produced structures were effectively use for SERS sensing showing very good reproducibility among big areas. This fact make them perfect candidates as ultrasensitive substrates for SERS due to the controlled formation of hot spots. Which provide high and uniform SERS enhancement over extended areas.

Fabrication of 3D plasmonic micro-structured super-crystals arrays

2019 Fall National Meeting

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