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image of Luminescent and Scintillation  Properties   of   LiLu(PO3)4:Pr3+ Nanophosphor

Abstract

Background

Recent advancements in luminescent materials have drawn significant interest due to their wide-ranging applications in radiation detection, lighting, and display technologies. Praseodymium-doped phosphates, in particular, have shown promise because of their unique luminescent and scintillation properties.

Objective

This study aims to synthesize, characterize, and evaluate the luminescent and scintillation properties of praseodymium-doped polyphosphate LiLu(PO), focusing on the potential applications of these materials.

Methods

LiLu(PO):Pr3+ microcrystals were synthesized using the flux method, while nanocrystals were produced the coprecipitation technique. The synthesized polyphosphates were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and photoluminescence (PL) spectroscopy.

Results

LiLu(PO):Pr3+ crystals were found to crystallize in the monoclinic C2/c space group with specific lattice parameters. The structural analysis revealed that the basic units are helical ribbons of (PO) formed by corner-sharing PO tetrahedra, with LuO dodecahedra and LiO tetrahedra forming linear chains. The incorporation of praseodymium ions resulted in the observation of both ultraviolet and visible luminescence under X-ray and laser excitations. UV emission, originating from 4f-5d → 4f2 transitions, exhibited a very fast lifetime (τ = 3 ns), while visible emission from transitions within the Pr3+ 4f2 ground configuration showed a short decay time of approximately 100 ns.

Conclusion

The scintillation properties of LiLu(PO):Pr3+ demonstrated promising results, indicating their potential for various high-performance applications, including solid-state lighting, bioimaging, and radiation detection.

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2024-12-03
2025-09-28

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/content/journals/cnm/10.2174/0124054615347222241114042634
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Luminescent and Scintillation  Properties   of   LiLu(PO3)4:Pr3+ Nanophosphor
Bentham Science Publishers ; https://doi.org/10.2174/0124054615347222241114042634
/content/journals/cnm/10.2174/0124054615347222241114042634
/content/journals/cnm/10.2174/0124054615347222241114042634
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  • Article Type:     Research Article
Keywords: Polyphosphate ; praseodymium ; scintillation ; luminescence ; crystal structure

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