Light Conversion upon Photoexcitation of NaBiF₄:Yb³⁺/Ho³⁺/Ce³⁺ Nanocrystalline Particles.

ABSTRACT: NaBiF₄ nanocrystalline particles were synthesized by means of a facile precipitation synthesis route to explore upconversion emission properties when doped with lanthanide ions. In particular, the incorporation of the Yb³⁺-Ho³⁺-Ce³⁺ triad with controlled ion concentration facilitates near-IR pumping conversion into visible light, with the possibility of color emission tuning depending on Ce³⁺ doping amount. We observed that introducing a Ce³⁺ content up to 20 at.% in NaBiF₄:Yb³⁺/Ho³⁺, the chromaticity progressively turns from green for the Ce³⁺ undoped system to red. This is due to cross-relaxation mechanisms between Ho³⁺ and Ce³⁺ ions that influence the relat

SUBMITTER: Trave E 

PROVIDER: S-EPMC9963621 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature