Annealing BaAl<sub>2</sub>O<sub>4</sub>:Tb<sup>3+</sup>/Tb<sup>4+</sup> in air and a reducing atmosphere: a strategy to enhance luminescence by eliminating Tb<sup>4+</sup>
Divya Janardhana, Shivaramu Nagarasanakote Jayaramu, E. Coetsee, David E. Motaung, H.C. Swart
Abstract
The enhancement of green luminescence in terbium (Tb)-doped BaAl 2 O 4 phosphors was significantly influenced by the annealing environment, primarily due to the reduction of Tb 4+ to Tb 3+ – a key factor for solid-state lighting applications.
Topics & Concepts
Annealing (glass)LuminescenceRadiochemistryPersistent luminescenceAtmosphere (unit)Materials sciencePhysicsAnalytical Chemistry (journal)Nuclear physicsChemistryOptoelectronicsThermoluminescenceMetallurgyEnvironmental chemistryThermodynamicsLuminescence Properties of Advanced MaterialsRadiation Detection and Scintillator TechnologiesGlass properties and applications