Plasmonic on-chip devices are widely used in all scientific fields. However, the substrates are mostly focused on glass or silica wafers, which are expensive, rigid, and fragile. Herein, fabrication of an Au nanoparticle array using Hole-mask colloidal lithography (HMCL) has been carried out on flexible plastic substrates. This allows for altering nanoparticle shape, size and spacing throughout the fabrication process in a rapid, inexpensive manner. Through stretching of the substrate half-way through the fabrication process, sStar and bean-shaped structures have been observed,d by stretching the hole-mask, which has potential for high sensitivity for localized surface plasmon resonance (LSPR) and surface enhanced Raman scattering (SERS) measurements. LSPR has emerged as a leader in the field of lable-free biosensing. Additionally, by stretching the substrate after fabrication is complete, the space between the nanoparticles and polymer buckling can be altered to tune the interactions between nanoparticles. This method allows for the possibility of tunable, a rugged, cheap, and flexiblee/wearable devices for a variety of applications includingultrasensitive biosensing and opto-electronic.

Asymmetric plasmonic nanoparticle array on flexible substrate

254th National Meeting (2017)

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