Year: 2025
Type: article
Abstract: The photoluminescence properties of solid solutions of YNbO4, GdNbO4, and LuNbO4 were investigated to determine the rare earth composition that maximizes the intrinsic luminescence intensity. All samples exhibited a monoclinic β-fergusonite-type structure without impurity phases. The intrinsic luminescence intensity followed the order of GdNbO4, YNbO4 and LuNbO4, with GdNbO4 showing significantly low intensity due to concentration quenching and self-absorption by Gd3+. Among the solid solutions, (Y,Lu)NbO4 showed higher luminescence intensity than LuNbO4, with Y0.75Lu0.25NbO4 exhibiting the highest intensity, approximately 42 % higher than LuNbO4. Fluorescence lifetime measurements of (Y,Lu)NbO4 showed single-component decay curves with lifetimes ranging from 3.3 to 4.3 µs, with no significant differences or correlation with luminescence intensity.
Institution: Saitama University
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
Awards: Experimental study on the luminescent mechanism of Cesium Hafnium Chloride, G4835176896, Developent of the real-time remote alpha-ray/gamma-ray/neutron monitor using noble scintillators, Modification of crystal growth and pre-treatment condition of red-emitting Cesium Hafnium Iodide scintillator
OpenAlex ID: W4408931902