The Smallest Metallic Nanorods Using Physical Vapor Deposition

TL;DR

This paper develops a theory to determine the smallest possible diameters of metallic nanorods and experimentally demonstrates Cu and Au nanorods at these minimal sizes using physical vapor deposition, marking a significant advancement in nanofabrication.

Contribution

The paper introduces a theoretical framework for the minimal diameter of metallic nanorods and experimentally achieves the smallest well-separated nanorods using PVD.

Findings

Cu nanorods of ~20 nm diameter achieved

Au nanorods of ~10 nm diameter achieved

First report of such small well-separated metallic nanorods using PVD

Abstract

We first present a theory of the smallest diameter and then use the theory to guide the experimental realization of Cu nanorods of ~20 nm in diameter and Au nanorods of ~10 nm in diameter, the smallest well-separated metallic nanorods ever reported using PVD.