TCO Nanostructures as building blocks for nanophotonic devices in the infrared

TL;DR

This paper presents a method for fabricating single crystal TCO nanorod arrays with controlled properties, enabling the development of advanced nanophotonic devices in the infrared spectrum.

Contribution

It introduces a simple fabrication technique for TCO nanorod arrays with tunable parameters, advancing nanophotonic device design.

Findings

Controlled fabrication of TCO nanorod arrays achieved.

Novel photonic and plasmonic properties demonstrated.

Potential applications in infrared nanophotonics explored.

Abstract

Transparent conducting oxides (TCOs), in general, are degenerated semiconductors with large electronic band-gap. They have been widely used for display screens, optoelectronic, photonic, and photovoltaic devices due to their unique dual transparent and conductive properties. In this study, we report in detail a technique that we developed to fabricate single crystal TCO nanorod arrays with controlled conductivity, height, and lattice spacing in a simple one-zone tube furnace system. We demonstrate how novel photonic/plasmonic properties can be obtained by selecting unique combinations of these basic parameters of the nano-rod arrays.