Abstract
A series of BiPO4:Eu3+ phosphors were hydrothermally synthesized by varying the molar ratio of PO4 3−/[Bi3++Eu3+] and the Eu3+ ions concentration in the precursor mixture. X-ray diffraction (XRD), field-emission scanning electronic microscopy (SEM) and photoluminescence (PL) spectra were employed to characterize the structure, morphology and luminescence properties of the as-synthesized phosphors. The XRD results indicate that the crystal structure of the BiPO4:Eu3+ samples are low-temperature monoclinic phase. The SEM observations reveal that the BiPO4:Eu3+ powders morphologies vary from octahedral-like to rod-like with increasing molar ratio of PO4 3−/[Bi3++Eu3+]. The PL spectra suggest that the emission intensity of the BiPO4:Eu3+ phosphors significantly enhances when the molar ratio of PO4 3−/[Bi3++Eu3+] is greater than 1.0. Therefore, the luminescence properties of BiPO4:Eu3+ phosphors can be improved effectively through controlling the molar ratio of PO4 3−/[Bi3++Eu3+] in the precursor mixture, which may provide an important reference for designing new luminescent materials.
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This work was financially supported by the National Science Foundation of China (Grant No. 51272148), and by the Science Foundation of Shaanxi Province (Grant No. 2014JM6237).
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Shi, X., Zhang, J., Liu, Y. et al. Anion/Cation-Controlled Morphology Evolution of Bi1−x PO4:xEu3+ and Enhanced Luminescence Properties. J. Electron. Mater. 45, 709–714 (2016). https://doi.org/10.1007/s11664-015-4178-6
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DOI: https://doi.org/10.1007/s11664-015-4178-6