Zobrazeno 1 - 9
of 9
pro vyhledávání: '"M. F. C. Gurgel"'
Autor:
A. C. Eduardo, M. H. M. Rodrigues, W. D. Mesquita, R. F. Gonçalves, M. F. C. Gurgel, M. J. Godinho
Publikováno v:
Cerâmica, Vol 67, Iss 384, Pp 455-462 (2021)
Resumo O uso de pesticidas, como o fipronil, visa o aumento da produtividade, melhoria na qualidade dos produtos gerados e a diminuição de prejuízos. Contudo, os resíduos acumulados podem ser lavados durante as chuvas, ocasionando a contaminaçã
Externí odkaz:
https://doaj.org/article/5d13c9dac43a45358b931a882fd49eac
Autor:
M. R. Cassia-Santos, S. B. Mendes, M. F. C. Gurgel, A. T. Figueiredo, M. Godinho Jr., C. E. M. Braz, E. Longo
Publikováno v:
Cerâmica, Vol 60, Iss 354, Pp 259-266 (2014)
Os estanatos com estrutura perovskita têm apresentado propriedades promissoras à sua utilização como cerâmica eletrônica do tipo: sensores, catalisadores e mais recentemente, fotoluminescente. Neste trabalho foi analisado o estudo do efeito do
Externí odkaz:
https://doaj.org/article/590d666cf9484840b9668116afcc1fe6
Autor:
Miryam R. Joya, Carlos O. Paiva-Santos, T. M. Boschi, Graziela Pereira Casali, José Arana Varela, Paulo S. Pizani, M. F. C. Gurgel, Elaine C. Paris, Elson Longo
Publikováno v:
Journal of Physics and Chemistry of Solids. 71:12-17
Pb 1−x Sm x TiO 3 (PST) powders with x varying from 0 to 0.1 were obtained by the polymeric precursor method, a soft chemical route. The vibrational properties relating tetragonal to pseudo-cubic phase transition were studied by Raman spectroscopy.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9726eb7f9eec3878db03df9ca294b22
https://doi.org/10.1016/j.jpcs.2009.09.012
https://doi.org/10.1016/j.jpcs.2009.09.012
Autor:
M. F. C. Gurgel, Elaine C. Paris, José Arana Varela, Alexandre Zirpoli Simões, Miryam R. Joya, Laécio S. Cavalcante, Elson Longo, Paulo S. Pizani
Publikováno v:
Acta Materialia. 55:6416-6426
The correlation between experimental data and theoretical calculations have been investigated to explain the photoluminescence at room temperature of Ba(Ti0.75Zr0.25)O3 (BTZ) thin films prepared by the polymeric precursor method. The degree of struct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f38f61ab69e6c1aa0be6baa0aa43ea16
https://doi.org/10.1016/j.actamat.2007.07.049
https://doi.org/10.1016/j.actamat.2007.07.049
Photoluminescence of crystalline and disordered BTO:Mn powder: Experimental and theoretical modeling
Autor:
José Arana Varela, Elson Longo, A. B. Campos, Maria Aparecida Zaghete, A. G. Souza, Paulo S. Pizani, Edson R. Leite, J. W. M. Espinosa, Ieda Lúcia Viana Rosa, M. F. C. Gurgel, Miryam R. Joya
Publikováno v:
Journal of Luminescence. 126:771-778
Disordered and crystalline Mn-doped BaTiO3 (BTO:Mn) powders were synthesized by the polymeric precursor method. After heat treatment, the nature of visible photoluminescence (PL) at room temperature in amorphous BTO:Mn was discussed, considering resu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2dd6d1d0fde2609087597edfddbbf160
https://doi.org/10.1016/j.jlumin.2006.11.011
https://doi.org/10.1016/j.jlumin.2006.11.011
Autor:
I. A. Souza, M. F. C. Gurgel, Márcio Sousa Góes, Carlos O. Paiva-Santos, Elson Longo, Luis P. S. Santos, Ieda Lúcia Viana Rosa, Mario Cilense, Sergio Cava
Publikováno v:
Chemical Physics. 322:343-348
Disordered and crystalline Ba0.45Sr0.55TiO3 (BST) powder processed at low temperature was synthesized by the polymeric precursor method. The single-phase perovskite structure of the ceramics was identified by the Raman and X-ray diffraction technique
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef01ae0c1f7712a887b7d0a89a0775fc
https://doi.org/10.1016/j.chemphys.2005.09.024
https://doi.org/10.1016/j.chemphys.2005.09.024
Autor:
Paulo S. Pizani, Armando Beltrán, T. M. Boschi, M. F. C. Gurgel, Edson R. Leite, Sergio Ricardo de Lazaro, M. S. C. Câmara, Elson Longo
Publikováno v:
International Journal of Quantum Chemistry. 103:580-587
This article describes the characterization of intense photoluminescence observed at room temperature of the Li2ZnTi3O8 spinel phase, obtained by the polymeric precursor method. The evolution of visible photoluminescence is demonstrated by measuremen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80f0d603e777c5c7ecc1fcca95b5b32d
https://doi.org/10.1002/qua.20549
https://doi.org/10.1002/qua.20549
Autor:
Elson Longo, Mário Lúcio Moreira, M. F. C. Gurgel, Edson R. Leite, Paulo S. Pizani, José Arana Varela, G. P. Mambrini
Publikováno v:
The journal of physical chemistry. A. 112(38)
The emission of wide band photoluminescence showed a synergic effect on barium zirconate and barium titanate thin films in alternate multilayer system at room temperature by 488 nm exiting wavelength. The thin films obtained by spin-coating were anne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e614dc5bc2c53e382986cd4b8a520d2
https://pubmed.ncbi.nlm.nih.gov/18593105
https://pubmed.ncbi.nlm.nih.gov/18593105
Autor:
M. L. Moreira, M. F. C. Gurgel, G. P. Mambrini, E. R. Leite, P. S. Pizani, J. A. Varela, E. Longo
Publikováno v:
Journal of Physical Chemistry A; Sep2008, Vol. 112 Issue 38, p8938-8942, 5p