JoVE - Journal of Visualized Experiments
JoVE Visualize
Contact Us

The influence of the ratio between Li2O and B2O3 on optical, luminescence, and thermal properties of samarium-doped lithium borate glass

  • 0Faculty of Science, Department of Physics, Al-Azhar University, Nasr City, 11884, Cairo, Egypt. ismailkashif52@yahoo.com.
Scientific Reports +

|

November 3, 2025

|

November 3, 2025

View abstract on PubMed

Summary

This summary is machine-generated.

This study shows how lithium borate glass structure impacts photoluminescence. Altering microstructural units and boron coordination enhances thermal stability and optical properties for optoelectronic applications.

Area Of Science

  • Materials Science
  • Solid State Chemistry
  • Spectroscopy

Background

  • Photoluminescence in lithium borate glasses is influenced by microstructural units.
  • Understanding structure-property relationships is key for developing advanced glass materials.

Purpose Of The Study

  • To investigate the effect of Li2O concentration on the structural and optical properties of Sm2O3-doped lithium borate glasses.
  • To correlate microstructural changes with photoluminescence characteristics for potential lasing and optoelectronic applications.

Main Methods

  • Fourier Transform Infrared (FTIR) spectroscopy with peak fitting and density analysis.
  • Quantitative analysis of FTIR spectra to determine structural unit trends and tetracoordinated boron content.
  • Optical absorption spectroscopy to analyze Sm3+ ion transitions and Judd-Ofelt parameters.

Main Results

  • Increased Li2O concentration led to changes in BØ3, BØ2O, and BØ4 structural units, affecting density and molar volume.
  • Enhanced glass network tightness improved thermal stability and glass-forming ability, indicating potential as lasing materials.
  • Optical properties, including absorption bands and emission wavelengths (green, orange, red), were significantly influenced by the BO4/BO3 ratio and borate group modifications.

Conclusions

  • The study establishes a clear link between the microstructural evolution of lithium borate glass and its photoluminescent behavior.
  • The Sm2O3-doped lithium borate glasses exhibit promising characteristics for optoelectronic devices due to tunable optical properties and enhanced stability.
  • The Judd-Ofelt parameters (Ω2, Ω4, Ω6) and observed emission spectra confirm the suitability of these glasses for light-emitting applications.

Keywords: