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Enhanced spectroscopic properties of holmium doped phosphate glass: Role of Ag/TiO2 nanoparticles embedment

Metal nanoparticles sensitized rare earth ions–doped inorganic oxide glasses with improved optical characteristics and optimum compositions became demanding for practical applications. However, the basic understanding of the interaction mechanism between various rare earth ions and metallic nanopart...

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Main Authors:	Jupri, Siti Aishah, Ghoshal, Sib Krishna, Omar, Muhammad Firdaus, Hamzah, Khaidzir, Yusof, Nur Nabihah, Syed Yaacob, Syariffah Nurathirah, Md. Zain, Siti Khalijah, Mohammed Danmallam, Ibrahim
Format:	Article
Language:	English
Published:	Elsevier B.V. 2022
Subjects:	QC Physics
Online Access:	http://eprints.utm.my/103378/1/EzzaSyuhadaSazali2022_MixedIonicElectronicEffect.pdf http://eprints.utm.my/103378/ http://dx.doi.org/10.1016/j.jlumin.2022.119380
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spelling	my.utm.1033782023-11-01T09:25:29Z http://eprints.utm.my/103378/ Enhanced spectroscopic properties of holmium doped phosphate glass: Role of Ag/TiO2 nanoparticles embedment Jupri, Siti Aishah Ghoshal, Sib Krishna Omar, Muhammad Firdaus Hamzah, Khaidzir Yusof, Nur Nabihah Syed Yaacob, Syariffah Nurathirah Md. Zain, Siti Khalijah Mohammed Danmallam, Ibrahim QC Physics Metal nanoparticles sensitized rare earth ions–doped inorganic oxide glasses with improved optical characteristics and optimum compositions became demanding for practical applications. However, the basic understanding of the interaction mechanism between various rare earth ions and metallic nanoparticles remains deficient. Based on this fact, some holmium ions (Ho3+)–doped magnesium zinc sulfophosphate glasses with Ag/TiO2 nanoparticles (NPs) co–activation were prepared using the melt–quenching process and characterized. Effects of Ag/TiO2 NPs co–activation at various contents on the physical, optical and structural properties of the glasses were determined. XRD analyses of the as–quenched samples confirmed their amorphous nature. FTIR and Raman spectra of the glasses showed structural modifications due to NPs incorporation. HRTEM image verified the existence of spherical Ag and non–spherical TiO2 NPs (mean size of 13.01 nm) in the glass matrix. The absorption spectra of the glasses displayed eleven significant peaks and photoluminescence spectra revealed prominent green (5F4 → 5I8) and red (5F5 → 5I8) emission peaks corresponding to various transitions in Ho3+. The oscillator strengths, Judd–Ofelt intensity and radiative parameters of the glasses were calculated to support the experimental results. The optical properties of the glasses were shown to improve via the Ag/TiO2 NPs co–activation. Among the prepared samples, glass containing 0.3 mol% of TiO2 NPs showed high stimulated emission cross–section (3.24 × 10−20 cm2) for the green emission, maximum quantum efficiency and radiative lifetime. The explanation of PL intensity enhancement and quenching mechanisms of Ho3+ may provide better understanding on the co−activation of metal/semiconductor NPs in the studied glasses. Elsevier B.V. 2022 Article PeerReviewed application/pdf en http://eprints.utm.my/103378/1/EzzaSyuhadaSazali2022_MixedIonicElectronicEffect.pdf Jupri, Siti Aishah and Ghoshal, Sib Krishna and Omar, Muhammad Firdaus and Hamzah, Khaidzir and Yusof, Nur Nabihah and Syed Yaacob, Syariffah Nurathirah and Md. Zain, Siti Khalijah and Mohammed Danmallam, Ibrahim (2022) Enhanced spectroscopic properties of holmium doped phosphate glass: Role of Ag/TiO2 nanoparticles embedment. Journal of Luminescence, 252 (119380). pp. 1-16. ISSN 0022-2313 http://dx.doi.org/10.1016/j.jlumin.2022.119380 DOI: 10.1016/j.jlumin.2022.119380
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
language	English
topic	QC Physics
spellingShingle	QC Physics Jupri, Siti Aishah Ghoshal, Sib Krishna Omar, Muhammad Firdaus Hamzah, Khaidzir Yusof, Nur Nabihah Syed Yaacob, Syariffah Nurathirah Md. Zain, Siti Khalijah Mohammed Danmallam, Ibrahim Enhanced spectroscopic properties of holmium doped phosphate glass: Role of Ag/TiO2 nanoparticles embedment
description	Metal nanoparticles sensitized rare earth ions–doped inorganic oxide glasses with improved optical characteristics and optimum compositions became demanding for practical applications. However, the basic understanding of the interaction mechanism between various rare earth ions and metallic nanoparticles remains deficient. Based on this fact, some holmium ions (Ho3+)–doped magnesium zinc sulfophosphate glasses with Ag/TiO2 nanoparticles (NPs) co–activation were prepared using the melt–quenching process and characterized. Effects of Ag/TiO2 NPs co–activation at various contents on the physical, optical and structural properties of the glasses were determined. XRD analyses of the as–quenched samples confirmed their amorphous nature. FTIR and Raman spectra of the glasses showed structural modifications due to NPs incorporation. HRTEM image verified the existence of spherical Ag and non–spherical TiO2 NPs (mean size of 13.01 nm) in the glass matrix. The absorption spectra of the glasses displayed eleven significant peaks and photoluminescence spectra revealed prominent green (5F4 → 5I8) and red (5F5 → 5I8) emission peaks corresponding to various transitions in Ho3+. The oscillator strengths, Judd–Ofelt intensity and radiative parameters of the glasses were calculated to support the experimental results. The optical properties of the glasses were shown to improve via the Ag/TiO2 NPs co–activation. Among the prepared samples, glass containing 0.3 mol% of TiO2 NPs showed high stimulated emission cross–section (3.24 × 10−20 cm2) for the green emission, maximum quantum efficiency and radiative lifetime. The explanation of PL intensity enhancement and quenching mechanisms of Ho3+ may provide better understanding on the co−activation of metal/semiconductor NPs in the studied glasses.
format	Article
author	Jupri, Siti Aishah Ghoshal, Sib Krishna Omar, Muhammad Firdaus Hamzah, Khaidzir Yusof, Nur Nabihah Syed Yaacob, Syariffah Nurathirah Md. Zain, Siti Khalijah Mohammed Danmallam, Ibrahim
author_facet	Jupri, Siti Aishah Ghoshal, Sib Krishna Omar, Muhammad Firdaus Hamzah, Khaidzir Yusof, Nur Nabihah Syed Yaacob, Syariffah Nurathirah Md. Zain, Siti Khalijah Mohammed Danmallam, Ibrahim
author_sort	Jupri, Siti Aishah
title	Enhanced spectroscopic properties of holmium doped phosphate glass: Role of Ag/TiO2 nanoparticles embedment
title_short	Enhanced spectroscopic properties of holmium doped phosphate glass: Role of Ag/TiO2 nanoparticles embedment
title_full	Enhanced spectroscopic properties of holmium doped phosphate glass: Role of Ag/TiO2 nanoparticles embedment
title_fullStr	Enhanced spectroscopic properties of holmium doped phosphate glass: Role of Ag/TiO2 nanoparticles embedment
title_full_unstemmed	Enhanced spectroscopic properties of holmium doped phosphate glass: Role of Ag/TiO2 nanoparticles embedment
title_sort	enhanced spectroscopic properties of holmium doped phosphate glass: role of ag/tio2 nanoparticles embedment
publisher	Elsevier B.V.
publishDate	2022
url	http://eprints.utm.my/103378/1/EzzaSyuhadaSazali2022_MixedIonicElectronicEffect.pdf http://eprints.utm.my/103378/ http://dx.doi.org/10.1016/j.jlumin.2022.119380
_version_	1781777687485874176
score	13.211869

Enhanced spectroscopic properties of holmium doped phosphate glass: Role of Ag/TiO2 nanoparticles embedment

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