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Abstract <p>Polycrystalline powders of AgLa<sub>1−<i>x</i></sub>Eu<sub><i>x</i></sub>(PO<sub>3</sub>)<sub>4</sub> (with <i>x</i> = 0.01, 0.05, 0.10 and 0.20) were synthesized using the flux method. These powders were systematically characterized by scanning electron microscopy, energy dispersive X-ray detector, X-Ray diffraction, fourier transform infrared spectroscopy, and photoluminescence spectroscopy. All diffractograms show similarity and correspond to the monoclinic structure of lanthanum phosphate. Spectroscopic properties of the Eu<sup>3+</sup> doped AgLa(PO<sub>3</sub>)<sub>4</sub> at room temperature are also investigated and showed significant improvement in the red emission intensity and decay time for <sup>5</sup>D<sub>0</sub> → <sup>7</sup>F<sub>1</sub> transition (590 nm), which embodies the fluorescent decay characteristic of microsized phosphors, indicating potential applications in opto-electronic devices.</p>

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Photoluminescence Improvements and Decay Time Enhancements in Novel Eu doped AgLa(PO3)4 Luminophores

  • 期刊论文

  • 发表日期：

    2025年1月1日

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  • L. Ajili,
  • A. Selmi,
  • H. Rahmouni,
  • A. Elboughdiri,
  • N. Sdiri,
  • M. Férid,
  • K. Horchani-Naifer

摘要

Abstract

Polycrystalline powders of AgLa1−xEux(PO3)4 (with x = 0.01, 0.05, 0.10 and 0.20) were synthesized using the flux method. These powders were systematically characterized by scanning electron microscopy, energy dispersive X-ray detector, X-Ray diffraction, fourier transform infrared spectroscopy, and photoluminescence spectroscopy. All diffractograms show similarity and correspond to the monoclinic structure of lanthanum phosphate. Spectroscopic properties of the Eu3+ doped AgLa(PO3)4 at room temperature are also investigated and showed significant improvement in the red emission intensity and decay time for 5D0 → 7F1 transition (590 nm), which embodies the fluorescent decay characteristic of microsized phosphors, indicating potential applications in opto-electronic devices.