Facile and rapid synthesis of highly luminescent nanoparticles via Pulsed Laser Ablation in Liquid

TL;DR

This paper presents a rapid and straightforward method using pulsed laser ablation in liquids to synthesize highly luminescent nanoparticles with preserved composition and optical properties at the nanoscale.

Contribution

It introduces pulsed laser ablation in liquids as an efficient technique for synthesizing complex, highly luminescent nanoparticles with controlled size and preserved properties.

Findings

Successfully synthesized various luminescent nanoparticles.

Nanoparticles sized 5-10 nm with preserved phase and stoichiometry.

Optical properties mostly retained with minor variations.

Abstract

This paper demonstrates the usefulness of pulsed laser ablation in liquids as a fast screening synthesis method able to prepare even complex compositions at the nanoscale. Nanoparticles of Y2O3:Eu3+, Lu2O2S: Eu3+, Gd2SiO5:Ce3+ and Lu3TaO7:Gd3+,Tb3+ are successfully synthesized by pulsed laser ablation in liquids. The phase and stoichiometries of the original materials are preserved while the sizes are reduced down to 5-10 nm. The optical properties of the materials are also preserved but show some small variations and some additional structures which are attributed to the specificities of the nanoscale (internal pressure, inhomogeneous broadening, surface states...)