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Photoluminescence and structural properties of Ce3+ and Eu3+ Co-doped Gd2SiO5 phosphor powders

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Abstract

The main objective of this work is to present the enhancement of photoluminescence (PL) and structural properties of Ce3+ and Eu3+ co-doped gadolinium orthosilicate Gd2SiO5 (GSO:Eu, Ce) scintillator elaborated by sol–gel method with different concentration of these rare-earth elements. The samples were characterized by X-ray diffraction, field emission-scanning electron microscopy (FE-SEM) and PL spectroscopy. XRD results confirm the crystallization of samples annealed at 1000°C for 4 h to the monoclinic Gd2SiO5 structure. The crystallographic parameters show that Eu3+/Ce3+ incorporated into Gd2SiO5 changes its structure. FE-SEM micrograph results show rod-shaped particles and EDAX spectra confirm the presence of the main constituent elements of the structure. PL showed that two emission peaks dominate the fluorescence spectra of Eu3+ in Gd2SiO5 and the emission intensity increases relatively with the doping concentration of Ce3+ ions.

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Acknowledgements

This work was supported by the Macromolecular Research Laboratory Abou Bekr Belkaid University and Centre de Recherche Scientifique et Technique en Analyses Physico-Chimiques CRAPC. We are grateful to MESRS (DGRSDT).

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Authors and Affiliations

  1. Macromolecular Research Laboratory, Faculty of Sciences, Abou Bekr Belkaid University, Tlemcen, Algeria

    Wissam Barka, Mohammed Salah Eddine Hamroun & Lahcene Mechernene

  2. Centre de Recherche Scientifique et Technique en Analyses Physico-Chimiques, BP 384, Zone Industrielle, Bou-Ismail, 42004, Tipaza, Algeria

    Mohammed Salah Eddine Hamroun, Ahmed Guenanou, Chikh Melkaoui, Fouzia Touahra, Redouane Chebout & Khaldoun Bachari

  3. Nuclear Research Centre of Algiers (CRNA), 02 Boulevard Frantz Fanon, P.O. Box 399, 16000, Algiers, Algeria

    Lakhdar Guerbous

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  1. Wissam Barka
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  2. Mohammed Salah Eddine Hamroun
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  3. Lahcene Mechernene
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  4. Ahmed Guenanou
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  6. Fouzia Touahra
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  7. Lakhdar Guerbous
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  8. Redouane Chebout
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  9. Khaldoun Bachari
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Correspondence to Mohammed Salah Eddine Hamroun.

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Barka, W., Hamroun, M.S.E., Mechernene, L. et al. Photoluminescence and structural properties of Ce3+ and Eu3+ Co-doped Gd2SiO5 phosphor powders. Bull Mater Sci 46, 202 (2023). https://doi.org/10.1007/s12034-023-03048-5

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  • DOI: https://doi.org/10.1007/s12034-023-03048-5

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