Quantum Confined High-Entropy Lanthanide Oxysulfide Colloidal Nanocrystals.

ABSTRACT: We have synthesized the first reported example of quantum confined high-entropy (HE) nanoparticles, using the lanthanide oxysulfide, Ln₂SO₂, system as the host phase for an equimolar mixture of Pr, Nd, Gd, Dy, and Er. A uniform HE phase was achieved via the simultaneous thermolysis of a mixture of lanthanide dithiocarbamate precursors in solution. This was confirmed by powder X-ray diffraction and high-resolution scanning transmission electron microscopy, with energy dispersive X-ray spectroscopic mapping confirming the uniform distribution of the lanthanides throughout the particles. The nanoparticle dispersion displayed a significant blue shift in the absorption and photoluminescence spectra relative to our previously reported bulk sample with the same compos

SUBMITTER: Ward-O'Brien B 

PROVIDER: S-EPMC9614967 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature