Synthesis, Morphology, Structure, and Luminescence Properties of Bi-Containing Phosphates: Review and Detailed Consideration on the Example of Pr3+-doped BiPO4 Nanopowders

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Abstract

Short review and new data about Bi-containing phosphates luminescence properties are presented in this work. Analysis of luminescence properties together with data on electronic band structures of some phosphates was performed. Literature data concerning impacts of particle sizes, morphology, and polymorph compositions on photoluminescence characteristics have been analyzed and discussed. The methods of BiPO4 phosphate compound synthesis, in particular in forms of nanopowders, have been discussed in detail. Peculiarities of crystal and electronic band structures for two monoclinic polymorphs of perfect BiPO4 as well as for high-temperature monoclinic BiPO4 with oxygen vacancy and PrPO4 crystals have been analyzed. Absorption and reflectance spectra were obtained from electronic band structure calculations for monoclinic polymorphs. The set of Pr3+-doped BiPO4 nanopowders was chosen as model object in this work. Polycrystalline samples of Bi1−xPrxPO4 (x = 0.001–0.1) and PrPO4 were prepared by solid-state reaction methods. The obtained samples were characterized by X-ray diffraction, scanning electron microscopy, and luminescent spectroscopy. The mechanisms of photoluminescence excitation and emission are discussed together with data on structure and morphology of the samples.

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Chornii, V., Boyko, V., Nedilko, S. G., Slobodyanik, M., & Terebilenko, K. (2019). Synthesis, Morphology, Structure, and Luminescence Properties of Bi-Containing Phosphates: Review and Detailed Consideration on the Example of Pr3+-doped BiPO4 Nanopowders. In Springer Proceedings in Physics (Vol. 222, pp. 19–51). Springer Science and Business Media, LLC. https://doi.org/10.1007/978-3-030-17755-3_2

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