Experimental analysis demonstrated increased luminescence by reducing Tb4+ to Tb3+ in Tb-doped phosphors, suggesting optimal annealing environments.
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.
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Janardhana et al. (2025) studied this question.
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