Gold nanosphere arrays with precisely controlled size and interspacingwere fabricated by nanosphere lithography for applications in surfaceenhanced Raman scattering and metal enhanced fluorescence. We demonstratethat by etching 500 nm and 250 nm polystyrene spheres on a polyolefinsurface using an oxygen plasma etcher, ordered bead arrays with sizesbetween 500 and 100 nm can be obtained. Integrating the polystyrenenanospheres onto our polyolefin shrink film, we can decrease ourinterparticle spacing by out 40%. In addition, by sonication of beads wecan fabricate triangular nanopores with base sizes near 200nm, and maximumspacing of 150 . This can be shrunk to obtain sizes and spacings 40% smaller. We will deposit gold and silver nanoparticles into these pores for potential optical enhancements. The methods describe allow for tunable nanoparticle arrays at highresolution and low cost.

Tunable enhanced plasmonic nanostructures for enhanced sensing

243rd National Meeting (2012)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.