Upconversion luminescence and thermal effects in terbium-ytterbium codoped fluorogermanate glass-ceramic

Detalhes bibliográficos
Autor(a) principal: Gouveia-Neto, A. S.
Data de Publicação: 2009
Outros Autores: Bueno, L. A., Do Nascimento, R. F., Sundheimer, M. L., Da Costa, E. B., Ribeiro, S. J.L. [UNESP], Messaddeq, Y. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/231923
Resumo: Cooperative energy transfer upconversion luminescence is investigated in Tb3+/Yb3+-codoped PbGeO3-PbF 2-CdF2 glass-ceramic and its precursor glass under resonant and off resonance infrared excitation. Bright UV-visible emission signals around 384, 415, 438 nm, and 473-490, 545, 587, and 623 nm are identified as due to the 5D3(5G 6)→7Fj (J=6,5,4) and 5D 4→7Fj (J=6,5,4,3) transitions, respectively, and readily observed. The results indicate that cooperative energy transfer between ytterbium and terbium ions followed by excited state absorption are the dominant upconversion excitation mechanisms involved. Comparison of the upconversion process in a glass-ceramic sample and its glassy precursor revealed that the former present much higher upconversion efficiency. The dependence of the upconversion emission upon pump power, temperature, and doping content is also examined.
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spelling Upconversion luminescence and thermal effects in terbium-ytterbium codoped fluorogermanate glass-ceramicCooperative energy transfer upconversion luminescence is investigated in Tb3+/Yb3+-codoped PbGeO3-PbF 2-CdF2 glass-ceramic and its precursor glass under resonant and off resonance infrared excitation. Bright UV-visible emission signals around 384, 415, 438 nm, and 473-490, 545, 587, and 623 nm are identified as due to the 5D3(5G 6)→7Fj (J=6,5,4) and 5D 4→7Fj (J=6,5,4,3) transitions, respectively, and readily observed. The results indicate that cooperative energy transfer between ytterbium and terbium ions followed by excited state absorption are the dominant upconversion excitation mechanisms involved. Comparison of the upconversion process in a glass-ceramic sample and its glassy precursor revealed that the former present much higher upconversion efficiency. The dependence of the upconversion emission upon pump power, temperature, and doping content is also examined.Departamento de Física Universidade Federal Rural de Pernambuco, Recife, PE-52171/900Institute de Química UNESP, Araraquara, SP-14800/900Institute de Química UNESP, Araraquara, SP-14800/900Universidade Federal Rural de PernambucoUniversidade Estadual Paulista (UNESP)Gouveia-Neto, A. S.Bueno, L. A.Do Nascimento, R. F.Sundheimer, M. L.Da Costa, E. B.Ribeiro, S. J.L. [UNESP]Messaddeq, Y. [UNESP]2022-04-29T08:48:13Z2022-04-29T08:48:13Z2009-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article34-36Physics and Chemistry of Glasses: European Journal of Glass Science and Technology Part B, v. 50, n. 1, p. 34-36, 2009.0031-9090http://hdl.handle.net/11449/2319232-s2.0-77952796589Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysics and Chemistry of Glasses: European Journal of Glass Science and Technology Part Binfo:eu-repo/semantics/openAccess2022-04-29T08:48:13Zoai:repositorio.unesp.br:11449/231923Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:47:30.235471Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Upconversion luminescence and thermal effects in terbium-ytterbium codoped fluorogermanate glass-ceramic
title Upconversion luminescence and thermal effects in terbium-ytterbium codoped fluorogermanate glass-ceramic
spellingShingle Upconversion luminescence and thermal effects in terbium-ytterbium codoped fluorogermanate glass-ceramic
Gouveia-Neto, A. S.
title_short Upconversion luminescence and thermal effects in terbium-ytterbium codoped fluorogermanate glass-ceramic
title_full Upconversion luminescence and thermal effects in terbium-ytterbium codoped fluorogermanate glass-ceramic
title_fullStr Upconversion luminescence and thermal effects in terbium-ytterbium codoped fluorogermanate glass-ceramic
title_full_unstemmed Upconversion luminescence and thermal effects in terbium-ytterbium codoped fluorogermanate glass-ceramic
title_sort Upconversion luminescence and thermal effects in terbium-ytterbium codoped fluorogermanate glass-ceramic
author Gouveia-Neto, A. S.
author_facet Gouveia-Neto, A. S.
Bueno, L. A.
Do Nascimento, R. F.
Sundheimer, M. L.
Da Costa, E. B.
Ribeiro, S. J.L. [UNESP]
Messaddeq, Y. [UNESP]
author_role author
author2 Bueno, L. A.
Do Nascimento, R. F.
Sundheimer, M. L.
Da Costa, E. B.
Ribeiro, S. J.L. [UNESP]
Messaddeq, Y. [UNESP]
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Federal Rural de Pernambuco
Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Gouveia-Neto, A. S.
Bueno, L. A.
Do Nascimento, R. F.
Sundheimer, M. L.
Da Costa, E. B.
Ribeiro, S. J.L. [UNESP]
Messaddeq, Y. [UNESP]
description Cooperative energy transfer upconversion luminescence is investigated in Tb3+/Yb3+-codoped PbGeO3-PbF 2-CdF2 glass-ceramic and its precursor glass under resonant and off resonance infrared excitation. Bright UV-visible emission signals around 384, 415, 438 nm, and 473-490, 545, 587, and 623 nm are identified as due to the 5D3(5G 6)→7Fj (J=6,5,4) and 5D 4→7Fj (J=6,5,4,3) transitions, respectively, and readily observed. The results indicate that cooperative energy transfer between ytterbium and terbium ions followed by excited state absorption are the dominant upconversion excitation mechanisms involved. Comparison of the upconversion process in a glass-ceramic sample and its glassy precursor revealed that the former present much higher upconversion efficiency. The dependence of the upconversion emission upon pump power, temperature, and doping content is also examined.
publishDate 2009
dc.date.none.fl_str_mv 2009-02-01
2022-04-29T08:48:13Z
2022-04-29T08:48:13Z
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 Physics and Chemistry of Glasses: European Journal of Glass Science and Technology Part B, v. 50, n. 1, p. 34-36, 2009.
0031-9090
http://hdl.handle.net/11449/231923
2-s2.0-77952796589
identifier_str_mv Physics and Chemistry of Glasses: European Journal of Glass Science and Technology Part B, v. 50, n. 1, p. 34-36, 2009.
0031-9090
2-s2.0-77952796589
url http://hdl.handle.net/11449/231923
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Physics and Chemistry of Glasses: European Journal of Glass Science and Technology Part B
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 34-36
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_ 1808129358536114176

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