Abstract
The effect of photoluminescence properties for (CaY)1−x−yTbxAlyBO4 phosphors was studied, considering the doped Al3+ and Tb3+ contents. The emission intensity of the Al3+-doped (CaY)0.915Tb0.06Al0.025BO4 phosphors under VUV excitation was more than two times stronger than that of the Al3+-free (CaY)0.94Tb0.06BO4. The contents of Tb3+ showing the strongest emission for the (CaY)0.975−xTbxAl0.025BO4 and (CaY)1−xTbxBO4 phosphors were x = 0.1 and 0.12, respectively. The results confirm that incorporating Al3+ in (CaY)1−xTbxBO4 phosphors is highly favorable for improving emission characteristics, along with production cost-effectiveness.
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