Gamma-ray irradiation-induced effects on Er3+-doped Li2O-Bi2O3-B2O3-TeO2 glass: Structural, optical, luminescence, and radiation shielding properties.
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| Title: | Gamma-ray irradiation-induced effects on Er3+-doped Li2O-Bi2O3-B2O3-TeO2 glass: Structural, optical, luminescence, and radiation shielding properties. |
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| Authors: | N, Srinatha1,2 (AUTHOR) srinatha007@gmail.com, Al-Dossari, M.3 (AUTHOR), Kagola, Upendra Kumar4 (AUTHOR), N, Suriyamurthy5 (AUTHOR), Angadi, Basavaraj6 (AUTHOR), A, Madhu1,7 (AUTHOR) mmathi.33@gmail.com |
| Source: | Ceramics International. Dec2024:Part B, Vol. 50 Issue 24, p54212-54223. 12p. |
| Subjects: | Molecular volume, Glass construction, Photon flux, Band gaps, Optical properties, Radiation shielding |
| Abstract: | In the present study, we report the gamma (γ) ray irradiation-induced structural, optical, luminescence and radiation shielding properties of Er3+-doped Li 2 O-Bi 2 O 3 -B 2 O 3 -TeO 2 glasses prepared by melt-quenching technique. It was evidence of the slight reductions in density and refractive index while maintaining stable optical properties upon the γ irradiation. Additionally, increased molar volume and polarizability indicated a less compact network. Raman spectroscopy shows broadened peaks and intensity reductions at key vibrational modes. The UV–Vis–NIR absorption spectra reveal the shift in the absorption edge and reduction in the intensities of Er³⁺ absorption bands (around 450, 520, 550, and 650 nm) with higher radiation doses, indicating radiation-induced damage. It was found that the band gap values decreased from 2.58 eV to 1.30 eV for un-irradiated glass to 90 kGy irradiated glass, and Urbach energy was found to increase from 0.18 to 1 eV respectively, indicating structural disorder and localized states within the band gap. PL emission spectra demonstrated intensity changes and peak shifts with γ radiation dose while maintaining a dominant green emission from 4S 3/2 → 4I 15/2 and 2H 11/2 → 4I 15/2 transitions, supported by the CIE diagram analysis. The NIR emission spectra also displayed a peak at 1530 nm with decreasing intensity, indicating defect-induced non-radiative recombination centres. Luminescence lifetime decay profiles indicated reduced lifetimes at higher γ doses, suggesting introduced non-radiative decay pathways. Furthermore, Phy-X software analysis highlighted effective γ-ray shielding influenced by chemical composition and photon flux, with MAC sharply decreasing to 1.8 cm2/g at 0.1 MeV and stabilizing, while LAC showed reduced attenuation efficiency at higher energies. HVL and TVL increased with energy, stabilizing around 4–5 cm and 15–16 cm, respectively, necessitating thicker materials for effective shielding at higher photon energies. MFP rapidly increased to 6–7 cm at 2 MeV, stabilizing at higher energies, while Z eff decreased sharply before stabilizing around 1 MeV. The EBF and EABF trends exhibited higher values at low energies, stabilizing at higher energies, indicating effective photon interaction and resonance effects. [ABSTRACT FROM AUTHOR] |
| Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 181283614 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Gamma-ray irradiation-induced effects on Er3+-doped Li2O-Bi2O3-B2O3-TeO2 glass: Structural, optical, luminescence, and radiation shielding properties. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22N%2C+Srinatha%22">N, Srinatha</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> srinatha007@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Al-Dossari%2C+M%2E%22">Al-Dossari, M.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kagola%2C+Upendra+Kumar%22">Kagola, Upendra Kumar</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22N%2C+Suriyamurthy%22">N, Suriyamurthy</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Angadi%2C+Basavaraj%22">Angadi, Basavaraj</searchLink><relatesTo>6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22A%2C+Madhu%22">A, Madhu</searchLink><relatesTo>1,7</relatesTo> (AUTHOR)<i> mmathi.33@gmail.com</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Ceramics+International%22">Ceramics International</searchLink>. Dec2024:Part B, Vol. 50 Issue 24, p54212-54223. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Molecular+volume%22">Molecular volume</searchLink><br /><searchLink fieldCode="DE" term="%22Glass+construction%22">Glass construction</searchLink><br /><searchLink fieldCode="DE" term="%22Photon+flux%22">Photon flux</searchLink><br /><searchLink fieldCode="DE" term="%22Band+gaps%22">Band gaps</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+properties%22">Optical properties</searchLink><br /><searchLink fieldCode="DE" term="%22Radiation+shielding%22">Radiation shielding</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In the present study, we report the gamma (γ) ray irradiation-induced structural, optical, luminescence and radiation shielding properties of Er3+-doped Li 2 O-Bi 2 O 3 -B 2 O 3 -TeO 2 glasses prepared by melt-quenching technique. It was evidence of the slight reductions in density and refractive index while maintaining stable optical properties upon the γ irradiation. Additionally, increased molar volume and polarizability indicated a less compact network. Raman spectroscopy shows broadened peaks and intensity reductions at key vibrational modes. The UV–Vis–NIR absorption spectra reveal the shift in the absorption edge and reduction in the intensities of Er³⁺ absorption bands (around 450, 520, 550, and 650 nm) with higher radiation doses, indicating radiation-induced damage. It was found that the band gap values decreased from 2.58 eV to 1.30 eV for un-irradiated glass to 90 kGy irradiated glass, and Urbach energy was found to increase from 0.18 to 1 eV respectively, indicating structural disorder and localized states within the band gap. PL emission spectra demonstrated intensity changes and peak shifts with γ radiation dose while maintaining a dominant green emission from 4S 3/2 → 4I 15/2 and 2H 11/2 → 4I 15/2 transitions, supported by the CIE diagram analysis. The NIR emission spectra also displayed a peak at 1530 nm with decreasing intensity, indicating defect-induced non-radiative recombination centres. Luminescence lifetime decay profiles indicated reduced lifetimes at higher γ doses, suggesting introduced non-radiative decay pathways. Furthermore, Phy-X software analysis highlighted effective γ-ray shielding influenced by chemical composition and photon flux, with MAC sharply decreasing to 1.8 cm2/g at 0.1 MeV and stabilizing, while LAC showed reduced attenuation efficiency at higher energies. HVL and TVL increased with energy, stabilizing around 4–5 cm and 15–16 cm, respectively, necessitating thicker materials for effective shielding at higher photon energies. MFP rapidly increased to 6–7 cm at 2 MeV, stabilizing at higher energies, while Z eff decreased sharply before stabilizing around 1 MeV. The EBF and EABF trends exhibited higher values at low energies, stabilizing at higher energies, indicating effective photon interaction and resonance effects. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.ceramint.2024.10.277 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 54212 Subjects: – SubjectFull: Molecular volume Type: general – SubjectFull: Glass construction Type: general – SubjectFull: Photon flux Type: general – SubjectFull: Band gaps Type: general – SubjectFull: Optical properties Type: general – SubjectFull: Radiation shielding Type: general Titles: – TitleFull: Gamma-ray irradiation-induced effects on Er3+-doped Li2O-Bi2O3-B2O3-TeO2 glass: Structural, optical, luminescence, and radiation shielding properties. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: N, Srinatha – PersonEntity: Name: NameFull: Al-Dossari, M. – PersonEntity: Name: NameFull: Kagola, Upendra Kumar – PersonEntity: Name: NameFull: N, Suriyamurthy – PersonEntity: Name: NameFull: Angadi, Basavaraj – PersonEntity: Name: NameFull: A, Madhu IsPartOfRelationships: – BibEntity: Dates: – D: 17 M: 12 Text: Dec2024:Part B Type: published Y: 2024 Identifiers: – Type: issn-print Value: 02728842 Numbering: – Type: volume Value: 50 – Type: issue Value: 24 Titles: – TitleFull: Ceramics International Type: main |
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