Size-Dependent Persistent Luminescence of YAGG:Cr³⁺ Nanophosphors.

ABSTRACT: In the current work, YAGG:Cr³⁺ nanophosphors were synthesized by the Pechini method and then annealed at different temperatures in the range 800-1300 °C. The structure and morphology of the samples were characterized by X-ray Powder Diffraction (XRPD). The lattice parameters and average crystalline sizes as site occupation by Al³⁺ and Ga³⁺ ions were calculated from the Rietveld refinement data. To investigate the effect of crystalline size of the materials on their optical properties: excitation and emission spectra were recorded and analyzed. Finally, the effect of crystalline size on the probability of carrier recombination leading to PersL was determined experimentally with thermoluminescence analyses. The T_max-T_stop method was appl

SUBMITTER: Boiko V 

PROVIDER: S-EPMC9267483 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature