Photoluminescence in the CaxSr1 xWO4 system at room temperature
| Main Author: | |
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| Publication Date: | 2008 |
| Other Authors: | , , , , , , , , , , , , |
| Format: | Article |
| Language: | eng |
| Source: | Repositório Institucional da UFRN |
| dARK ID: | ark:/41046/0013000013pnt |
| Download full: | https://repositorio.ufrn.br/handle/123456789/32189 |
Summary: | 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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Photoluminescence in the CaxSr1 xWO4 system at room temperatureTungstatesScheelitePhotoluminescenceDisorderIn 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 SrWO4Elsevier2021-04-13T14:41:52Z2021-04-13T14:41:52Z2008-08info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfPORTO, 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.2008.04.015ark:/41046/0013000013pntAttribution 3.0 Brazilhttp://creativecommons.org/licenses/by/3.0/br/info:eu-repo/semantics/openAccessPôrto, 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 deengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRN2021-04-18T09:06:08Zoai:repositorio.ufrn.br:123456789/32189Repositório InstitucionalPUBhttp://repositorio.ufrn.br/oai/repositorio@bczm.ufrn.bropendoar:2021-04-18T09:06:08Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
| dc.title.none.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.none.fl_str_mv |
2008-08 2021-04-13T14:41:52Z 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 |
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publishedVersion |
| dc.identifier.uri.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. 0022-4596 https://repositorio.ufrn.br/handle/123456789/32189 10.1016/j.jssc.2008.04.015 |
| dc.identifier.dark.fl_str_mv |
ark:/41046/0013000013pnt |
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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 ark:/41046/0013000013pnt |
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https://repositorio.ufrn.br/handle/123456789/32189 |
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eng |
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eng |
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Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ info:eu-repo/semantics/openAccess |
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Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ |
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openAccess |
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Elsevier |
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Elsevier |
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reponame:Repositório Institucional da UFRN instname:Universidade Federal do Rio Grande do Norte (UFRN) instacron:UFRN |
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