Platinum tripods as nanometric frequency multiplexing devices

TL;DR

This paper investigates the crystallographic and electrical properties of platinum nanostars, demonstrating their potential as high-current-density frequency multiplexing devices due to their unique metallic and structural features.

Contribution

It introduces platinum nanostars grown via a mild chemical process as novel nanometric devices capable of high-current operation and frequency multiplexing.

Findings

Nanostars exhibit a highly crystalline and metallic structure.

Devices operate at current densities over 200 MA/cm².

They function effectively as frequency multiplexers in the non-ohmic regime.

Abstract

Electrical and structural characterization of nano-particles are very important steps to determine their potential applications in microelectronics. In this paper, we adress the crystallographic and electric transport properties of soft-chemistry-grown nanometric Pt tribranches. We report that Pt nanostars grown from the reduction of $\text{H}_{2}\text{PtCl}_6$ salt in pure oleylamine present a remarkable crystalline structure and a deeply metallic character despite being grown under mild conditions. We demonstrate that such devices are able to operate at current densities surpassing $200$ MA/$\text{cm}^2$, actuating as highly compact frequency multiplexers in the non-ohmic regime.