Near-infrared single-photon emitters based on colloidal CdSe/CdS/ZnS nanocrystals and Nd(III) 1,3-diketonate

Opt Lett. 2020 Oct 1;45(19):5480-5483. doi: 10.1364/OL.401227.

Abstract

A novel, to the best of our knowledge, approach to the design of the single-photon sources emitting in the spectral regions of 1060 and 1337 nm was developed. A unique hybrid structure based on colloidal CdSe/CdS/ZnS nanocrystals and neodymium(III) 1,3-diketonate was created. Direct energy transfer from the CdSe/CdS/ZnS single nanocrystal to the near-infrared (NIR) luminescent Nd(III) complex was observed and investigated by spectroscopic methods. The single-photon emission mode was confirmed for the novel hybrid source by Hanbury Brown and Twiss experiments.