Abstract
The effect of Ti co-doping in BaAl2O4:Eu2+ phosphor material on crystalline quality, morphology and photoluminescence (PL) characteristics was investigated. The co-doped green phosphor compositions (BaAl2O4:Eu2+, Ti3+) with varying concentrations of Ti were prepared by solid-state synthesis method. These compositions were characterized for their phase, morphology and crystallinity by powder X-ray diffraction, SEM and TEM techniques. The photoluminescence properties were investigated measuring PL and decay time. Broad band UV excited luminescence was observed for BaAl2O4:Eu2+, Ti3+ in the green region (λmax=500nm) due to transitions from 4f6 5d1 to the 4f7 configuration of the Eu2+ ion.
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