Synthesis, photoluminescence, Judd–Ofelt analysis, and thermal stability studies of Dy<sup>3+</sup>-doped BaLa<sub>2</sub>ZnO<sub>5</sub> phosphors for solid-state lighting applications
Irfan Ayoub, Vijay Kumar
Abstract
substitution in the present host. The thermal stability of the phosphor was assessed by varying the temperature up to 403 K, and it was found that the synthesized phosphor possesses improved thermal stability with an activation energy of 0.29 eV. The photometric evaluations of the present phosphor revealed the CIE coordinates around the near-white regime (0.3448, 0.3836), along with the color-correlated temperature value of 5102 K. All research on this luminescent material's unique features points to the possibility of using it to fabricate white-light-emitting devices for solid-state lighting applications.
Topics & Concepts
PhosphorTetragonal crystal systemPhotoluminescenceLuminescenceMaterials scienceAnalytical Chemistry (journal)Thermal stabilityDopingColor temperatureBand gapSolid-state lightingPowder diffractionIonCrystal structureLight-emitting diodeOptoelectronicsChemistryCrystallographyOrganic chemistryChromatographyLuminescence Properties of Advanced MaterialsRadiation Detection and Scintillator TechnologiesMicrowave Dielectric Ceramics Synthesis