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This work reports the use of monolayer colloidal crystal of polystyrene spheres as a template combined with electroless deposition to fabricate Ag through-sphere segment void (SSV) arrays. Experimental and theoretical (finite-difference time-domain) results reveal that the structured Ag through-SSV arrays create extraordinary optical transmission (EOT) and largely enhanced localized fields, thereby...
We report seed-mediated synthesis of large (up to 180nm) Au nanoparticles (NPs) for size-optimized surface-enhanced Raman scattering (SERS) at Pd overlayers. Our results reveal that overmuch produced electrolyte during synthesis may destabilize the growing particles, making them failure to grow freely. This understanding guides the synthesis of large Au NPs with a large range of sizes, thereby allowing...
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