Full-color phosphors from europium(III)-based organosilicates
Autor(a) principal: | |
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Data de Publicação: | 2000 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1002/(SICI)1521-4095(200004)12:8<594 http://hdl.handle.net/11449/231690 |
Resumo: | Room-temperature white light emission materials were synthesized using Eu3+-based hybrid xerogels. Color tunabability across the Commission Internationale de L'Eclairage (x,y) chromaticity diagram was obtained by changing the salt concentration and/or the excitation wavelength. The values of the Ω2 and Ω4 intensity parameters show a highly polarizable Eu3+ local environment. The existence of four available carbonyl oxygen at the salt concentration for each incorporated Eu ion accounts for the greater tendency of the first ligands to bond covalently to the metal ion. A gradual increase in the non-radiative channels as the salt concentration increases is due to the replacement of carbonyl oxygen by water molecules in the Eu3+ first coordination shells. |
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Repositório Institucional da UNESP |
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Full-color phosphors from europium(III)-based organosilicatesRoom-temperature white light emission materials were synthesized using Eu3+-based hybrid xerogels. Color tunabability across the Commission Internationale de L'Eclairage (x,y) chromaticity diagram was obtained by changing the salt concentration and/or the excitation wavelength. The values of the Ω2 and Ω4 intensity parameters show a highly polarizable Eu3+ local environment. The existence of four available carbonyl oxygen at the salt concentration for each incorporated Eu ion accounts for the greater tendency of the first ligands to bond covalently to the metal ion. A gradual increase in the non-radiative channels as the salt concentration increases is due to the replacement of carbonyl oxygen by water molecules in the Eu3+ first coordination shells.Instituto de Química UNESP, C.P. 355, 14800-900, Araraquara-SPDepartamento de Física Universidade de Aveiro, 3810 AveiroDepto. de Química Fundamental Instituto de Química Universidade de S. Paulo, C.P. 26077, São Paulo-SPSeccao de Quimica Univ. de Tras-os-Montes e Alto Douro Quinta de Prados, Apartado 202, 5001 Vila Real CodexInstituto de Química UNESP, C.P. 355, 14800-900, Araraquara-SPUniversidade Estadual Paulista (UNESP)Universidade de AveiroUniversidade de S. PauloQuinta de PradosCarlos, Luís D.Messaddeq, Younés [UNESP]Brito, Hermi F.Sá Ferreira, Rute A.De Zea Bermudez, VerónicaRibeiro, Sidney J. L. [UNESP]2022-04-29T08:46:56Z2022-04-29T08:46:56Z2000-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article594-598http://dx.doi.org/10.1002/(SICI)1521-4095(200004)12:8<594Advanced Materials, v. 12, n. 8, p. 594-598, 2000.0935-9648http://hdl.handle.net/11449/23169010.1002/(SICI)1521-4095(200004)12:8<5942-s2.0-0033889524Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAdvanced Materialsinfo:eu-repo/semantics/openAccess2022-04-29T08:46:56Zoai:repositorio.unesp.br:11449/231690Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-29T08:46:56Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Full-color phosphors from europium(III)-based organosilicates |
title |
Full-color phosphors from europium(III)-based organosilicates |
spellingShingle |
Full-color phosphors from europium(III)-based organosilicates Carlos, Luís D. |
title_short |
Full-color phosphors from europium(III)-based organosilicates |
title_full |
Full-color phosphors from europium(III)-based organosilicates |
title_fullStr |
Full-color phosphors from europium(III)-based organosilicates |
title_full_unstemmed |
Full-color phosphors from europium(III)-based organosilicates |
title_sort |
Full-color phosphors from europium(III)-based organosilicates |
author |
Carlos, Luís D. |
author_facet |
Carlos, Luís D. Messaddeq, Younés [UNESP] Brito, Hermi F. Sá Ferreira, Rute A. De Zea Bermudez, Verónica Ribeiro, Sidney J. L. [UNESP] |
author_role |
author |
author2 |
Messaddeq, Younés [UNESP] Brito, Hermi F. Sá Ferreira, Rute A. De Zea Bermudez, Verónica Ribeiro, Sidney J. L. [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Universidade de Aveiro Universidade de S. Paulo Quinta de Prados |
dc.contributor.author.fl_str_mv |
Carlos, Luís D. Messaddeq, Younés [UNESP] Brito, Hermi F. Sá Ferreira, Rute A. De Zea Bermudez, Verónica Ribeiro, Sidney J. L. [UNESP] |
description |
Room-temperature white light emission materials were synthesized using Eu3+-based hybrid xerogels. Color tunabability across the Commission Internationale de L'Eclairage (x,y) chromaticity diagram was obtained by changing the salt concentration and/or the excitation wavelength. The values of the Ω2 and Ω4 intensity parameters show a highly polarizable Eu3+ local environment. The existence of four available carbonyl oxygen at the salt concentration for each incorporated Eu ion accounts for the greater tendency of the first ligands to bond covalently to the metal ion. A gradual increase in the non-radiative channels as the salt concentration increases is due to the replacement of carbonyl oxygen by water molecules in the Eu3+ first coordination shells. |
publishDate |
2000 |
dc.date.none.fl_str_mv |
2000-01-01 2022-04-29T08:46:56Z 2022-04-29T08:46:56Z |
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/10.1002/(SICI)1521-4095(200004)12:8<594 Advanced Materials, v. 12, n. 8, p. 594-598, 2000. 0935-9648 http://hdl.handle.net/11449/231690 10.1002/(SICI)1521-4095(200004)12:8<594 2-s2.0-0033889524 |
url |
http://dx.doi.org/10.1002/(SICI)1521-4095(200004)12:8<594 http://hdl.handle.net/11449/231690 |
identifier_str_mv |
Advanced Materials, v. 12, n. 8, p. 594-598, 2000. 0935-9648 10.1002/(SICI)1521-4095(200004)12:8<594 2-s2.0-0033889524 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Advanced Materials |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
594-598 |
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_ |
1799964488378613760 |