Photoluminescence in the CaxSr1 xWO4 system at room temperature

Detalhes bibliográficos
Autor(a) principal: Pôrto, S. L.
Data de Publicação: 2008
Outros Autores: Silva, Elson Longo da, Pizani, Paulo Sérgio, Boschi, Tania M., Simões, Luis Gustavo Pagotto, Lima, Severino Jackson Guedes, Ferreira, Jailson M., Soledade, Luiz Edmundo Bastos, Espinoza, J. W. M., Santos, Maria Rita de Cássia, Maurera, Maria Aldeiza M. A., Paskocimas, Carlos Alberto, Santos, Ieda Maria Garcia dos, Souza, Antônio Gouveia de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRN
Texto Completo: https://repositorio.ufrn.br/handle/123456789/32189
Resumo: In this work, a study was undertaken about the structural and photoluminescent properties, at room temperature, of powder samples from the CaxSr1 xWO4 (x ¼ 0–1.0) system, synthesized by a soft chemical method and heat treated between 400 and 700 1C. The material was characterized using Infrared, UV–vis and Raman spectroscopy and XRD. The most intense PL emission was obtained for the sample calcined at 600 1C, which is neither highly disordered (400–500 1C), nor completely ordered (700 1C). Corroborating the role of disorder in the PL phenomenon, the most intense PL response was not observed for pure CaWO4 or SrWO4, but for Ca0.6Sr0.4WO4. The PL emission spectra could be separated into two Gaussian curves. The lower wavelength peak is placed around 530 nm, and the higher wavelength peak at about 690 nm. Similar results were reported in the literature for both CaWO4 and SrWO4
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spelling Pôrto, S. L.Silva, Elson Longo daPizani, Paulo SérgioBoschi, Tania M.Simões, Luis Gustavo PagottoLima, Severino Jackson GuedesFerreira, Jailson M.Soledade, Luiz Edmundo BastosEspinoza, J. W. M.Santos, Maria Rita de CássiaMaurera, Maria Aldeiza M. A.Paskocimas, Carlos AlbertoSantos, Ieda Maria Garcia dosSouza, Antônio Gouveia de2021-04-13T14:41:52Z2021-04-13T14:41:52Z2008-08PORTO, S.; LONGO, E.; PIZANI, P.; BOSCHI, T.; SIMOES, L.; LIMA, S.; FERREIRA, J.; SOLEDADE, L.; ESPINOZA, J.; SANTOS, M.. Photoluminescence in the CaxSr1?xWO4 system at room temperature. Journal of Solid State Chemistry, v. 181, p. 1876-1881, 2008. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0022459608001898?via%3Dihub. Acesso em: 08 mar. 2021. https://doi.org/10.1016/j.jssc.2008.04.015.0022-4596https://repositorio.ufrn.br/handle/123456789/3218910.1016/j.jssc.2008.04.015ElsevierAttribution 3.0 Brazilhttp://creativecommons.org/licenses/by/3.0/br/info:eu-repo/semantics/openAccessTungstatesScheelitePhotoluminescenceDisorderPhotoluminescence in the CaxSr1 xWO4 system at room temperatureinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleIn this work, a study was undertaken about the structural and photoluminescent properties, at room temperature, of powder samples from the CaxSr1 xWO4 (x ¼ 0–1.0) system, synthesized by a soft chemical method and heat treated between 400 and 700 1C. The material was characterized using Infrared, UV–vis and Raman spectroscopy and XRD. The most intense PL emission was obtained for the sample calcined at 600 1C, which is neither highly disordered (400–500 1C), nor completely ordered (700 1C). Corroborating the role of disorder in the PL phenomenon, the most intense PL response was not observed for pure CaWO4 or SrWO4, but for Ca0.6Sr0.4WO4. The PL emission spectra could be separated into two Gaussian curves. The lower wavelength peak is placed around 530 nm, and the higher wavelength peak at about 690 nm. 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dc.title.pt_BR.fl_str_mv Photoluminescence in the CaxSr1 xWO4 system at room temperature
title Photoluminescence in the CaxSr1 xWO4 system at room temperature
spellingShingle Photoluminescence in the CaxSr1 xWO4 system at room temperature
Pôrto, S. L.
Tungstates
Scheelite
Photoluminescence
Disorder
title_short Photoluminescence in the CaxSr1 xWO4 system at room temperature
title_full Photoluminescence in the CaxSr1 xWO4 system at room temperature
title_fullStr Photoluminescence in the CaxSr1 xWO4 system at room temperature
title_full_unstemmed Photoluminescence in the CaxSr1 xWO4 system at room temperature
title_sort Photoluminescence in the CaxSr1 xWO4 system at room temperature
author Pôrto, S. L.
author_facet Pôrto, S. L.
Silva, Elson Longo da
Pizani, Paulo Sérgio
Boschi, Tania M.
Simões, Luis Gustavo Pagotto
Lima, Severino Jackson Guedes
Ferreira, Jailson M.
Soledade, Luiz Edmundo Bastos
Espinoza, J. W. M.
Santos, Maria Rita de Cássia
Maurera, Maria Aldeiza M. A.
Paskocimas, Carlos Alberto
Santos, Ieda Maria Garcia dos
Souza, Antônio Gouveia de
author_role author
author2 Silva, Elson Longo da
Pizani, Paulo Sérgio
Boschi, Tania M.
Simões, Luis Gustavo Pagotto
Lima, Severino Jackson Guedes
Ferreira, Jailson M.
Soledade, Luiz Edmundo Bastos
Espinoza, J. W. M.
Santos, Maria Rita de Cássia
Maurera, Maria Aldeiza M. A.
Paskocimas, Carlos Alberto
Santos, Ieda Maria Garcia dos
Souza, Antônio Gouveia de
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Pôrto, S. L.
Silva, Elson Longo da
Pizani, Paulo Sérgio
Boschi, Tania M.
Simões, Luis Gustavo Pagotto
Lima, Severino Jackson Guedes
Ferreira, Jailson M.
Soledade, Luiz Edmundo Bastos
Espinoza, J. W. M.
Santos, Maria Rita de Cássia
Maurera, Maria Aldeiza M. A.
Paskocimas, Carlos Alberto
Santos, Ieda Maria Garcia dos
Souza, Antônio Gouveia de
dc.subject.por.fl_str_mv Tungstates
Scheelite
Photoluminescence
Disorder
topic Tungstates
Scheelite
Photoluminescence
Disorder
description In this work, a study was undertaken about the structural and photoluminescent properties, at room temperature, of powder samples from the CaxSr1 xWO4 (x ¼ 0–1.0) system, synthesized by a soft chemical method and heat treated between 400 and 700 1C. The material was characterized using Infrared, UV–vis and Raman spectroscopy and XRD. The most intense PL emission was obtained for the sample calcined at 600 1C, which is neither highly disordered (400–500 1C), nor completely ordered (700 1C). Corroborating the role of disorder in the PL phenomenon, the most intense PL response was not observed for pure CaWO4 or SrWO4, but for Ca0.6Sr0.4WO4. The PL emission spectra could be separated into two Gaussian curves. The lower wavelength peak is placed around 530 nm, and the higher wavelength peak at about 690 nm. Similar results were reported in the literature for both CaWO4 and SrWO4
publishDate 2008
dc.date.issued.fl_str_mv 2008-08
dc.date.accessioned.fl_str_mv 2021-04-13T14:41:52Z
dc.date.available.fl_str_mv 2021-04-13T14:41:52Z
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.citation.fl_str_mv PORTO, S.; LONGO, E.; PIZANI, P.; BOSCHI, T.; SIMOES, L.; LIMA, S.; FERREIRA, J.; SOLEDADE, L.; ESPINOZA, J.; SANTOS, M.. Photoluminescence in the CaxSr1?xWO4 system at room temperature. Journal of Solid State Chemistry, v. 181, p. 1876-1881, 2008. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0022459608001898?via%3Dihub. Acesso em: 08 mar. 2021. https://doi.org/10.1016/j.jssc.2008.04.015.
dc.identifier.uri.fl_str_mv https://repositorio.ufrn.br/handle/123456789/32189
dc.identifier.issn.none.fl_str_mv 0022-4596
dc.identifier.doi.none.fl_str_mv 10.1016/j.jssc.2008.04.015
identifier_str_mv PORTO, S.; LONGO, E.; PIZANI, P.; BOSCHI, T.; SIMOES, L.; LIMA, S.; FERREIRA, J.; SOLEDADE, L.; ESPINOZA, J.; SANTOS, M.. Photoluminescence in the CaxSr1?xWO4 system at room temperature. Journal of Solid State Chemistry, v. 181, p. 1876-1881, 2008. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0022459608001898?via%3Dihub. Acesso em: 08 mar. 2021. https://doi.org/10.1016/j.jssc.2008.04.015.
0022-4596
10.1016/j.jssc.2008.04.015
url https://repositorio.ufrn.br/handle/123456789/32189
dc.language.iso.fl_str_mv eng
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dc.rights.driver.fl_str_mv Attribution 3.0 Brazil
http://creativecommons.org/licenses/by/3.0/br/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 3.0 Brazil
http://creativecommons.org/licenses/by/3.0/br/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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instname:Universidade Federal do Rio Grande do Norte (UFRN)
instacron:UFRN
instname_str Universidade Federal do Rio Grande do Norte (UFRN)
instacron_str UFRN
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