Self-assembled metallic nanoparticle template --- a new approach of surface nanostructuring at nanometer scale

TL;DR

This paper presents a novel surface nanostructuring method using self-assembled gold nanoparticles as templates to selectively deposit silver and copper on HOPG, achieving nanometer-scale patterning.

Contribution

It introduces a new approach for nanometer-scale surface patterning using self-assembled metallic nanoparticles as templates.

Findings

Successful formation of silver and copper nanostructures on HOPG.

Achieved surface patterning with nanometer resolution.

Demonstrated selective deposition of metals on Au NPs.

Abstract

In the present work, the formation of silver and copper nanostructures on highly oriented pyrolytic graphite (HOPG) modified with self-assembled gold nanoparticles (Au NPs) is demonstrated. Surface patterning with nanometer resolution was achieved. Different methods such as field emission scanning electron microscopy (FEGSEM), energy dispersive spectrometry (EDS) and X-ray photoelectron spectroscopy (XPS) were used to illustrate a selective deposition of silver and copper on Au NPs. The mechanism of silver and copper ions reduction on Au NP with $n$-dodecanethiol coating is discussed.