Effect of replacing ZnO with La2O3 on the physical, optical, and radiation shielding properties of lanthanum zinc tellurite

Dalal Abdullah Aloraini; Ateyyah M. Al-Baradi; Kh. S. Shaaban

doi:10.1515/ract-2025-0006

Article

Effect of replacing ZnO with La₂O₃ on the physical, optical, and radiation shielding properties of lanthanum zinc tellurite

Dalal Abdullah Aloraini , Ateyyah M. Al-Baradi and Kh. S. Shaaban

Published/Copyright: May 1, 2025

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From the journal Radiochimica Acta Volume 113 Issue 7

Abstract

The optical and radiation attenuation properties of zinc-tellurite glass modified with La₂O₃ are investigated in this work. The density increased from 3.13 to 4.73 g cm⁻³ as the concentrations of La₂O₃ rises, indicating a significant physical property. A shift in absorption to lower energy levels is indicated by the Urbach energy (E _u) rising from 0.307 to 0.335 and the optical band gap narrowing from 3.36 to 1.36 eV for ( E opt indi ), and from 4.06 to 1.5 eV for ( E opt di ). This study concludes that the zinc tellurite glasses doped with La₂O₃ showed improved optical characteristics for optical semiconducting devices. LAC (cm⁻¹) increases from 0.115 to 0.183 at 15 MeV and from 140.97 to 223.49 cm⁻¹ at 0.015 MeV as the La₂O₃ content increases, indicating a significant improvement in radiation shielding effectiveness. The high (LAC) values indicate enhanced photon absorption, making this glass a strong candidate for radiation shielding in medical applications. Overall, this study indicated that La₂O₃ could offer better shielding properties to the glass samples.

Keywords: tellurite glasses; optical; shielding

Corresponding author: Kh. S. Shaaban, Department of Chemistry, Faculty of Science, Al-Azhar University, P.O. 71524, Assiut, Egypt, E-mail: khamies1078@yahoo.com

Research ethics: Not applicable.
Informed consent: Not applicable.
Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.
Use of Large Language Models, AI and Machine Learning Tools: None declared.
Conflict of interest: The authors state no conflict of interest.
Research funding: The authors express their gratitude Taif University Researchers Supporting Project number (TU-DSPP-2024-124), Taif University, Taif, Saudi Arabia.
Data availability: The raw data can be obtained on request from the corresponding author.

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Received: 2025-01-24

Accepted: 2025-04-17

Published Online: 2025-05-01

Published in Print: 2025-07-28

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Articles in the same Issue

https://doi.org/10.1515/ract-2025-0006

Keywords for this article

tellurite glasses; optical; shielding