Photoluminescence in the CaxSr1 xWO4 system at room temperature

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

Photoluminescence in the CaxSr1 xWO4 system at room temperature

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dc.contributor.author	Pôrto, S. L.
dc.contributor.author	Silva, Elson Longo da
dc.contributor.author	Pizani, Paulo Sérgio
dc.contributor.author	Boschi, Tania M.
dc.contributor.author	Simões, Luis Gustavo Pagotto
dc.contributor.author	Lima, Severino Jackson Guedes
dc.contributor.author	Ferreira, Jailson M.
dc.contributor.author	Soledade, Luiz Edmundo Bastos
dc.contributor.author	Espinoza, J. W. M.
dc.contributor.author	Santos, Maria Rita de Cássia
dc.contributor.author	Maurera, Maria Aldeiza M. A.
dc.contributor.author	Paskocimas, Carlos Alberto
dc.contributor.author	Santos, Ieda Maria Garcia dos
dc.contributor.author	Souza, Antônio Gouveia de
dc.date.accessioned	2021-04-13T14:41:52Z
dc.date.available	2021-04-13T14:41:52Z
dc.date.issued	2008-08
dc.description.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	pt_BR
dc.identifier.citation	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.	pt_BR
dc.identifier.doi	10.1016/j.jssc.2008.04.015
dc.identifier.issn	0022-4596
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/32189
dc.language	en	pt_BR
dc.publisher	Elsevier	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	Tungstates	pt_BR
dc.subject	Scheelite	pt_BR
dc.subject	Photoluminescence	pt_BR
dc.subject	Disorder	pt_BR
dc.title	Photoluminescence in the CaxSr1 xWO4 system at room temperature	pt_BR
dc.type	article	pt_BR