Fabrication and Characterization of Chain-like Arrangement of Gold Nanoparticles using Nanotemplates

Abstract

This paper reports the fabrication technique for chain-like arrangements of gold nanoparticles on a substrate and its optical characterization. We successfully fabricated the directional chain-like arrangements and controlled the particle number by the self-assembly using nanotrench templates. We fabricated the dense arrangement in the nanotrenches with high yield reducing an electrostatic repulsive force between particles in water suspension by an addition of electrolytes. Extinction spectra showed the shift of spectrum peaks depending on the particle number, which was consistent with the analytical results.