Photoluminescence study of Eu3+ doped zinc-tungsten-antimonite glasses for red LED applications
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.jlumin.2020.117608 http://hdl.handle.net/11449/202048 |
Resumo: | The rare earth ions doped glassy materials have become crucial capstone in solid state lighting due to their top-notch optical properties. In this work, Eu3+ doped zinc-tungsten-antimonite glasses with compositions of (60 - x)Sb2O3 − 15WO3 – 25ZnO – xEu2O3 (where x is 0.5, 1.0, 1.5, 2.0, 2.5 and 3.0) were prepared by melt quenching technique. The glasses were prepared with the variation of concentration of Eu3+ ions to achieve superior brightness. The emission intensity increases with the increasing concentration of Eu3+ ions. The prepared glasses exhibit strong hypersensitive red emission at 616 nm due to 5D0 → 7F2 transition under 465 nm excitation wavelength. Along with maximum bright red emission of 3 mol % Eu3+ doped glass also demonstrates high degree of excited state lifetime (556 μs). All these properties strongly validate the bright prospect of these luminescent glasses for utilizing in red LED applications. |
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Repositório Institucional da UNESP |
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Photoluminescence study of Eu3+ doped zinc-tungsten-antimonite glasses for red LED applicationsAntimonite glassesLEDOptical propertiesPhotoluminescenceRare earthThe rare earth ions doped glassy materials have become crucial capstone in solid state lighting due to their top-notch optical properties. In this work, Eu3+ doped zinc-tungsten-antimonite glasses with compositions of (60 - x)Sb2O3 − 15WO3 – 25ZnO – xEu2O3 (where x is 0.5, 1.0, 1.5, 2.0, 2.5 and 3.0) were prepared by melt quenching technique. The glasses were prepared with the variation of concentration of Eu3+ ions to achieve superior brightness. The emission intensity increases with the increasing concentration of Eu3+ ions. The prepared glasses exhibit strong hypersensitive red emission at 616 nm due to 5D0 → 7F2 transition under 465 nm excitation wavelength. Along with maximum bright red emission of 3 mol % Eu3+ doped glass also demonstrates high degree of excited state lifetime (556 μs). All these properties strongly validate the bright prospect of these luminescent glasses for utilizing in red LED applications.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)ASCRS Research FoundationInstitute of Chemistry Sao Paulo State University (UNESP)Center for Optics Photonics and Lasers (COPL) Laval UniversityInstitute of Chemistry Sao Paulo State University (UNESP)Universidade Estadual Paulista (Unesp)Laval UniversityRoy, Joy Sankar [UNESP]Messaddeq, Younès [UNESP]2020-12-12T02:48:28Z2020-12-12T02:48:28Z2020-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.jlumin.2020.117608Journal of Luminescence, v. 228.0022-2313http://hdl.handle.net/11449/20204810.1016/j.jlumin.2020.1176082-s2.0-85089903875Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Luminescenceinfo:eu-repo/semantics/openAccess2021-10-23T04:53:41Zoai:repositorio.unesp.br:11449/202048Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:19:48.660488Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Photoluminescence study of Eu3+ doped zinc-tungsten-antimonite glasses for red LED applications |
title |
Photoluminescence study of Eu3+ doped zinc-tungsten-antimonite glasses for red LED applications |
spellingShingle |
Photoluminescence study of Eu3+ doped zinc-tungsten-antimonite glasses for red LED applications Roy, Joy Sankar [UNESP] Antimonite glasses LED Optical properties Photoluminescence Rare earth |
title_short |
Photoluminescence study of Eu3+ doped zinc-tungsten-antimonite glasses for red LED applications |
title_full |
Photoluminescence study of Eu3+ doped zinc-tungsten-antimonite glasses for red LED applications |
title_fullStr |
Photoluminescence study of Eu3+ doped zinc-tungsten-antimonite glasses for red LED applications |
title_full_unstemmed |
Photoluminescence study of Eu3+ doped zinc-tungsten-antimonite glasses for red LED applications |
title_sort |
Photoluminescence study of Eu3+ doped zinc-tungsten-antimonite glasses for red LED applications |
author |
Roy, Joy Sankar [UNESP] |
author_facet |
Roy, Joy Sankar [UNESP] Messaddeq, Younès [UNESP] |
author_role |
author |
author2 |
Messaddeq, Younès [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Laval University |
dc.contributor.author.fl_str_mv |
Roy, Joy Sankar [UNESP] Messaddeq, Younès [UNESP] |
dc.subject.por.fl_str_mv |
Antimonite glasses LED Optical properties Photoluminescence Rare earth |
topic |
Antimonite glasses LED Optical properties Photoluminescence Rare earth |
description |
The rare earth ions doped glassy materials have become crucial capstone in solid state lighting due to their top-notch optical properties. In this work, Eu3+ doped zinc-tungsten-antimonite glasses with compositions of (60 - x)Sb2O3 − 15WO3 – 25ZnO – xEu2O3 (where x is 0.5, 1.0, 1.5, 2.0, 2.5 and 3.0) were prepared by melt quenching technique. The glasses were prepared with the variation of concentration of Eu3+ ions to achieve superior brightness. The emission intensity increases with the increasing concentration of Eu3+ ions. The prepared glasses exhibit strong hypersensitive red emission at 616 nm due to 5D0 → 7F2 transition under 465 nm excitation wavelength. Along with maximum bright red emission of 3 mol % Eu3+ doped glass also demonstrates high degree of excited state lifetime (556 μs). All these properties strongly validate the bright prospect of these luminescent glasses for utilizing in red LED applications. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T02:48:28Z 2020-12-12T02:48:28Z 2020-12-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.jlumin.2020.117608 Journal of Luminescence, v. 228. 0022-2313 http://hdl.handle.net/11449/202048 10.1016/j.jlumin.2020.117608 2-s2.0-85089903875 |
url |
http://dx.doi.org/10.1016/j.jlumin.2020.117608 http://hdl.handle.net/11449/202048 |
identifier_str_mv |
Journal of Luminescence, v. 228. 0022-2313 10.1016/j.jlumin.2020.117608 2-s2.0-85089903875 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Luminescence |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129310212489216 |