Structural, vibrational, and luminescent properties of pure and Ce-doped magnesium lithium aluminoborate glass

  • 0Departamento de Física, Universidade Federal de Sergipe, São Cristóvão, SE, Brazil.

Summary

This summary is machine-generated.

New BAlMgLi glasses, pure and cerium-doped, were studied for their structure and radiation response. Cerium doping enhanced optical transparency and produced reproducible luminescence signals, with optimal results at 0.5% concentration.

Area Of Science

  • Materials Science
  • Solid State Physics
  • Glass Science

Background

  • Vitreous materials are essential in various technological applications.
  • Understanding the structural and optical properties of doped glasses is crucial for developing new functional materials.
  • BAlMgLi glasses offer a promising base for optical and radiation-sensing applications.

Purpose Of The Study

  • To investigate the structural, vibrational, and luminescence properties of pure and cerium-doped BAlMgLi glasses.
  • To analyze the effect of cerium doping on the glassy characteristics and radiation response.
  • To explore the potential of these glasses for optically stimulated luminescence (OSL) and thermoluminescence (TL) applications.

Main Methods

  • Melt-quenching method for sample preparation.
  • X-ray Diffraction (XRD) for phase analysis.
  • Raman Spectroscopy and Fourier Transform Infrared (FTIR) Spectroscopy for structural and vibrational analysis.
  • Optically Stimulated Luminescence (OSL) and Thermoluminescence (TL) for radiation response evaluation.

Main Results

  • XRD confirmed the amorphous nature of all synthesized BAlMgLi samples.
  • Raman and FTIR spectroscopy revealed pyroborate and metaborate structures, with evidence of boroxol ring formation and conversion of BO3 to BO4 units.
  • Cerium doping led to increased optical transparency and reproducible OSL/TL signals dependent on concentration and radiation dose.
  • The most intense luminescence was observed for samples doped with 0.5% cerium.

Conclusions

  • The melt-quenching method successfully produced amorphous BAlMgLi glasses.
  • Cerium doping enhances the optical transparency and induces luminescence in BAlMgLi glasses.
  • These doped glasses exhibit promising characteristics for radiation detection and dosimetry applications.

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