Tunable luminescence evolution and energy transfer behavior of Na₃Sc₂(PO₄)₃:Ce³⁺/Tb³⁺/Eu³⁺ phosphors.

ABSTRACT: A series of color-tunable emitting Na₃Sc₂(PO₄)₃:Ce³⁺/Tb³⁺/Eu³⁺ (NSPO) phosphors were prepared by a combination of hydrothermal synthesis and low temperature calcination. The phase structure, photoluminescence and energy transfer properties of the samples were studied in detail. The tunable colors were obtained by co-doping the Tb³⁺ ions into the NSPO:Ce³⁺ or NSPO:Eu³⁺ phosphors with varying concentrations. Under UV excitation, the energy transfers from Tb³⁺ to Eu³⁺ in the NSPO host occurred mainly via a dipole-dipole mechanism, and the critical distances of the ion pairs (R _c) was calculated to be 17.94 Å by the quenching concentration

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC9059669 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature