Assembly of gold nanoparticles into aluminum nanobowl array

Sci Rep. 2017 May 24;7(1):2322. doi: 10.1038/s41598-017-02552-z.

Abstract

We mimic unique honeycomb structure as well as its functions of storing honey and pollen to assemble Au nanoparticle pattern on honeycomb-like Al nanobowl array by utilizing solid state dewetting process. Patterned Au nanoarrays of 'one particle per bowl' with tunable plasmonic bands ranging from the visible to the near-infrared region are fabricated by finely selecting the initial thickness of Au film, the geometry of Al nanobowl array and the thermal treatment parameters. This work presents a powerful approach to assemble Au nanoparticles into high density nanoarrays with superior spatial resolution, offering highly concentrated electromagnetic fields for plasmonic sensor applications.

Publication types

  • Research Support, Non-U.S. Gov't