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Investigation of optical and radiation shielding properties in bismuth oxide-doped barium borate glasses

Year: 2025
Type: article
Abstract: This study presents a novel exploration of barium borate glasses doped with bismuth oxide (Bi 2 O 3 ) to simultaneously enhance their optical and radiation shielding properties. Using a melting-quenching technique, a series of glasses with compositions of (65-x)B 2 O 3 + 5WO 3 + 20BaO + 10Na 2 O + xBi 2 O 3 (where x = 0, 5, 10, 15, and 20 mol%) was produced. X-ray diffraction analysis (XRD) confirmed the amorphous nature of the samples, while Fourier-transform infrared spectroscopy (FTIR) revealed the conversion of trigonal [BO 3 ] to tetrahedral [BO 4 ] units in the glass structure. The incorporation of Bi 2 O 3 led to a significant increase in density and molar volume . The optical band gap decreased from 3.96 eV to 3.30 eV with higher Bi 2 O 3 concentrations. Notably, the refractive index also increased from 1.49 to 1.63 with the addition of Bi 2 O 3 . The elastic moduli (Young's modulus, shear modulus , and bulk modulus) decreased with increasing Bi 2 O 3 content. Additionally, the analysis of radiation shielding effectiveness demonstrated that Bi 2 O 3 significantly increased both the mass attenuation coefficient (MAC) and linear attenuation coefficient (LAC), particularly for low-energy photon interactions, making these glasses suitable for applications involving gamma and X-ray radiation protection. The results establish the potential of Bi 2 O 3 -doped barium borate glasses as advanced materials for radiation shielding, photonic devices , and other optoelectronic applications .
DOI: 10.1016/j.net.2025.103633
Language: English
Open Access status: gold
Estimated APC paid: $200
OpenAlex ID: W4409560966
FWCI: 3.108
Cites: 89
Cited by: 15
Related to: 10