Structure-Dopant Concentration Relations in Europium-Doped Yttrium Molybdate and Peak-Sharpening for Luminescence Temperature Sensing.

ABSTRACT: A set of Eu³⁺-doped molybdates, Y_2-xEuxMo₃O₁₂ (x = 0.04; 0.16; 0.2; 0.4; 0.8; 1; 1.6; 2), was synthesized using a solid-state technique and their properties studied as a function of Eu³⁺ concentration. X-ray diffraction showed that the replacement of Y³⁺ with larger Eu³⁺ resulted in a transformation from orthorhombic (low doping concentrations) through tetragonal (high doping concentrations), reaching monoclinic structure for full replacement in Eu₂Mo₃O₁₂. The intensity of typical Eu³⁺ red emission slightly increases in the orthorhombic structure then rises significantly with dopant concentration and has the highest value for the tetragonal Y₂Mo₃O

SUBMITTER: Gavrilovic T 

PROVIDER: S-EPMC11396498 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature