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<p>Ce-doped Ba<sub>3</sub>Bi<sub>2</sub>(PO<sub>4</sub>)<sub>4</sub> phosphors were synthesized and characterized to study their structure and luminescent properties. XRD analysis confirmed a&#xa0;monoclinic crystal structure matching reference data. FESEM images showed microcrystalline particles with some agglomeration. The Fourier Transform Infrared Spectroscopy (FTIR) analysis identified key phosphate and functional group vibrations. Photoluminescence (PL) peaked at 2 mol% Ce doping, with an inverse relation between crystallite size and emission intensity. Dexter’s theory revealed dipole-dipole energy transfer between Ce<sup>3</sup>⁺ ions. The phosphor emitted blue light, confirmed by CIE analysis. Thermoluminescence (TL) studies indicated deep trap levels, with deconvolution revealing trapping parameters. These results demonstrate the material potential for blue light and radiation detection applications.</p>

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Photoluminescence and thermoluminescence properties of Ce-doped Ba3Bi2(PO4)4 phosphors

  • 期刊论文

  • 发表日期：

    2026年1月16日

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  • Suman Agrawal,
  • Piyush Jha,
  • Rishi Jaiswal,
  • V. K. Chandra

摘要

Ce-doped Ba3Bi2(PO4)4 phosphors were synthesized and characterized to study their structure and luminescent properties. XRD analysis confirmed a monoclinic crystal structure matching reference data. FESEM images showed microcrystalline particles with some agglomeration. The Fourier Transform Infrared Spectroscopy (FTIR) analysis identified key phosphate and functional group vibrations. Photoluminescence (PL) peaked at 2 mol% Ce doping, with an inverse relation between crystallite size and emission intensity. Dexter’s theory revealed dipole-dipole energy transfer between Ce3⁺ ions. The phosphor emitted blue light, confirmed by CIE analysis. Thermoluminescence (TL) studies indicated deep trap levels, with deconvolution revealing trapping parameters. These results demonstrate the material potential for blue light and radiation detection applications.