Work

Red and infrared colour centres in zinc oxide epitaxial nanowires

Year: 2025

Type: article

Abstract: The integration of quantum emitters in semiconductor nanowires (NWs) offers appealing prospects for quantum optics and quantum information applications. Here, we study the visible emission from metal-organic vapour phase epitaxy zinc oxide NWs. We show that the NWs frequently incorporate native red-emitting colour centres at about 650 nm, in the form of small ensembles exhibiting photon antibunching, down to individual emitters. Additional post-treatment can yield modification of the number and the optical properties of the emitters, as well as generate near-infrared emitters (∼ 780 nm). Our results could be used for the realisation of guided quantum sources deterministically integrated in hybrid devices.

Source: Nanotechnology

DOI: 10.1088/1361-6528/addace