Structural and Optical Modifications in the BaO-ZnO-LiF-B2O3-Yb2O3 Glass System after γ-Irradiation

A Yb3+-doped borate glass system was examined for the structural and optical modifications after <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>γ<...

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Autores principales:	Nimitha S. Prabhu, Hiriyur Mallaiah Somashekarappa, M. I. Sayyed, Hamid Osman, Sultan Alamri, Mayeen Uddin Khandaker, Sudha D. Kamath
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	irradiation glass optical properties structural properties Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
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spelling	oai:doaj.org-article:914f59d149434c24a2bdba3a4bc1b6082021-11-25T18:15:01ZStructural and Optical Modifications in the BaO-ZnO-LiF-B<sub>2</sub>O<sub>3</sub>-Yb<sub>2</sub>O<sub>3</sub> Glass System after <i>γ</i>-Irradiation10.3390/ma142269551996-1944https://doaj.org/article/914f59d149434c24a2bdba3a4bc1b6082021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6955https://doaj.org/toc/1996-1944A Yb<sup>3</sup><sup>+</sup>-doped borate glass system was examined for the structural and optical modifications after <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>γ</mi></mrow></semantics></math></inline-formula>-irradiation. Among the studied 10BaO-20ZnO-20LiF-(50-<i>x</i>)B<sub>2</sub>O<sub>3</sub>-<i>x</i>Yb<sub>2</sub>O<sub>3</sub> (<i>x</i> = 0.1, 0.5, 0.7, and 1.0 mol%) glasses, the 10BaO-20ZnO-20LiF-49.9B<sub>2</sub>O<sub>3</sub>-0.1Yb<sub>2</sub>O<sub>3</sub> glass showed the highest thermoluminescence intensity, trap density, and trap depth. The glass was irradiated with the optimum <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>γ</mi></mrow></semantics></math></inline-formula>-dose of 1 kGy towards the analysis of radiation-induced defects. The amorphous nature was preserved before and after irradiation. The glass density slightly increased after irradiation. The structural rearrangement was evident from the Fourier transform infrared spectroscopy by the appearance and disappearance of some bonds after <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>γ</mi></mrow></semantics></math></inline-formula>-irradiation. The transformation of [BO<sub>4</sub>] units into [BO<sub>3</sub>] units and non-bridging oxygens was deduced. The color of the glass darkened after irradiation and the optical absorption intensity enhanced between 250 and 700 nm. The optical bandgap reduced and Urbach energy increased upon <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>γ</mi></mrow></semantics></math></inline-formula>-dose exposure. The electron spin resonance of the irradiated glass exhibited two signals at g = 2.0167 and g = 1.9938, corresponding to the non-bridging oxygen hole center and Boron <i>E’</i>-center, respectively.Nimitha S. PrabhuHiriyur Mallaiah SomashekarappaM. I. SayyedHamid OsmanSultan AlamriMayeen Uddin KhandakerSudha D. KamathMDPI AGarticleirradiationglassoptical propertiesstructural propertiesTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6955, p 6955 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	irradiation glass optical properties structural properties Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	irradiation glass optical properties structural properties Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Nimitha S. Prabhu Hiriyur Mallaiah Somashekarappa M. I. Sayyed Hamid Osman Sultan Alamri Mayeen Uddin Khandaker Sudha D. Kamath Structural and Optical Modifications in the BaO-ZnO-LiF-B<sub>2</sub>O<sub>3</sub>-Yb<sub>2</sub>O<sub>3</sub> Glass System after <i>γ</i>-Irradiation
description	A Yb<sup>3</sup><sup>+</sup>-doped borate glass system was examined for the structural and optical modifications after <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>γ</mi></mrow></semantics></math></inline-formula>-irradiation. Among the studied 10BaO-20ZnO-20LiF-(50-<i>x</i>)B<sub>2</sub>O<sub>3</sub>-<i>x</i>Yb<sub>2</sub>O<sub>3</sub> (<i>x</i> = 0.1, 0.5, 0.7, and 1.0 mol%) glasses, the 10BaO-20ZnO-20LiF-49.9B<sub>2</sub>O<sub>3</sub>-0.1Yb<sub>2</sub>O<sub>3</sub> glass showed the highest thermoluminescence intensity, trap density, and trap depth. The glass was irradiated with the optimum <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>γ</mi></mrow></semantics></math></inline-formula>-dose of 1 kGy towards the analysis of radiation-induced defects. The amorphous nature was preserved before and after irradiation. The glass density slightly increased after irradiation. The structural rearrangement was evident from the Fourier transform infrared spectroscopy by the appearance and disappearance of some bonds after <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>γ</mi></mrow></semantics></math></inline-formula>-irradiation. The transformation of [BO<sub>4</sub>] units into [BO<sub>3</sub>] units and non-bridging oxygens was deduced. The color of the glass darkened after irradiation and the optical absorption intensity enhanced between 250 and 700 nm. The optical bandgap reduced and Urbach energy increased upon <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>γ</mi></mrow></semantics></math></inline-formula>-dose exposure. The electron spin resonance of the irradiated glass exhibited two signals at g = 2.0167 and g = 1.9938, corresponding to the non-bridging oxygen hole center and Boron <i>E’</i>-center, respectively.
format	article
author	Nimitha S. Prabhu Hiriyur Mallaiah Somashekarappa M. I. Sayyed Hamid Osman Sultan Alamri Mayeen Uddin Khandaker Sudha D. Kamath
author_facet	Nimitha S. Prabhu Hiriyur Mallaiah Somashekarappa M. I. Sayyed Hamid Osman Sultan Alamri Mayeen Uddin Khandaker Sudha D. Kamath
author_sort	Nimitha S. Prabhu
title	Structural and Optical Modifications in the BaO-ZnO-LiF-B<sub>2</sub>O<sub>3</sub>-Yb<sub>2</sub>O<sub>3</sub> Glass System after <i>γ</i>-Irradiation
title_short	Structural and Optical Modifications in the BaO-ZnO-LiF-B<sub>2</sub>O<sub>3</sub>-Yb<sub>2</sub>O<sub>3</sub> Glass System after <i>γ</i>-Irradiation
title_full	Structural and Optical Modifications in the BaO-ZnO-LiF-B<sub>2</sub>O<sub>3</sub>-Yb<sub>2</sub>O<sub>3</sub> Glass System after <i>γ</i>-Irradiation
title_fullStr	Structural and Optical Modifications in the BaO-ZnO-LiF-B<sub>2</sub>O<sub>3</sub>-Yb<sub>2</sub>O<sub>3</sub> Glass System after <i>γ</i>-Irradiation
title_full_unstemmed	Structural and Optical Modifications in the BaO-ZnO-LiF-B<sub>2</sub>O<sub>3</sub>-Yb<sub>2</sub>O<sub>3</sub> Glass System after <i>γ</i>-Irradiation
title_sort	structural and optical modifications in the bao-zno-lif-b<sub>2</sub>o<sub>3</sub>-yb<sub>2</sub>o<sub>3</sub> glass system after <i>γ</i>-irradiation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/914f59d149434c24a2bdba3a4bc1b608
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Structural and Optical Modifications in the BaO-ZnO-LiF-B<sub>2</sub>O<sub>3</sub>-Yb<sub>2</sub>O<sub>3</sub> Glass System after <i>γ</i>-Irradiation

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