Rapid Preparation and Luminescence Properties of YbAG:Tm3+ Nanoparticles

Abstract

(Tm_xYb_{1 –x})₃Al₅O₁₂ (YbAG:Tm³⁺) nanoparticles (NPs) with mean diameter of 56 nm were prepared by a rapid carbonate coprecipitation method with a short calcination time of only 1 min. Our results confirmed the structure and purity of the prepared material and proved that Tm³⁺ was successfully incorporated into YbAG. The results on the upconversion luminescence show that the emission peaks were located at 486 and 684 nm, corresponding to the ¹G₄ → ³H₆ and ³F₂ → ³H₆ transitions of Tm³⁺. The transition mechanism of the blue and red emission was discussed.This rapid method could improve the production efficiency of YbAG:Tm³⁺ nanoparticles, and may have certain implications for the preparation of other upconversion nanomaterials.