Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Patresio A.M. Nascimento"'
Autor:
Ariosvaldo J.S. Silva, Patresio A.M. Nascimento, Wellisson S. Silveira, Iure da S. Carvalho, Marcos V. dos S. Rezende
Publikováno v:
Journal of Alloys and Compounds. 927:166959
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bc29b8ab2cb2c8d97a6f0979d71f1a1
https://doi.org/10.1016/j.jallcom.2022.166959
https://doi.org/10.1016/j.jallcom.2022.166959
Autor:
Patresio A.M. Nascimento, Marcos V. dos S. Rezende, Ronaldo Santos da Silva, R.S. Freire, Ariosvaldo J.S. Silva, Iure da S. Carvalho, Sabrina M. de Freitas, Carlos William de Araujo Paschoal
Publikováno v:
Ceramics International. 45:18994-19001
Structural and optical properties of non-stoichiometric pure and doped LiAl5O8 prepared via a simple sol-gel using glucose were investigated. X-ray diffraction, scanning electron microscopy, and photoluminescence measurements were used to characteriz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0f4bcf9bcc158ddc070d3085fd3dab6
https://doi.org/10.1016/j.ceramint.2019.06.140
https://doi.org/10.1016/j.ceramint.2019.06.140
Autor:
Wellisson S. Silveira, Patresio A.M. Nascimento, Marcos V. dos S. Rezende, Ariosvaldo J.S. Silva
Publikováno v:
Optik. 185:847-851
The change on the luminescent properties due to the Sr2+ co-doping in YAG:Eu3+ phosphors prepared by modified sol-gel methods using glucose as a polymeric agent was investigated. X-ray diffraction (XRD) pattern and Photoluminescence (PL) measurement
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9d55c600252ba02c92c1569a6a42182
https://doi.org/10.1016/j.ijleo.2019.03.138
https://doi.org/10.1016/j.ijleo.2019.03.138
Autor:
Patresio A.M. Nascimento, Ariosvaldo J.S. Silva, Danilo O. Junot, Marcos V. dos S. Rezende, D.V. Sampaio, Lílian M. Jesus, T.R. Cunha, Ronaldo Santos da Silva, Iure da S. Carvalho, Amanda I. dos S. Barbosa, Adriano B. Andrade
Publikováno v:
Materials Chemistry and Physics. 228:9-14
Eu-doped (Y2.99-xGdx)Al5O12 phosphors (with x = 0, 0.5, 1, 1.5, 2, 2.5, and 2.99) were prepared by a sol-gel method using polyvinylalcohol (PVA) as gel agent. The crystal structures were characterized through X-ray diffraction and the resulting data
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79ca9582812400a5e20511a9c6a08fa9
https://doi.org/10.1016/j.matchemphys.2019.02.035
https://doi.org/10.1016/j.matchemphys.2019.02.035
Autor:
D.V. Sampaio, Benjamin J.A. Moulton, Daniela A. Hora, Marcos V. dos S. Rezende, Ariosvaldo J.S. Silva, Ronaldo Santos da Silva, Patresio A.M. Nascimento
Publikováno v:
Optical Materials. 89:329-333
Eu-doped LiBaPO4 phosphors were synthesized by sol–gel route using PVA as the chelating agent. The structure and photoluminescence (PL) properties of the as-prepared LiBaPO4 phosphors were investigated by X-ray diffraction (XRD), X-ray absorption s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5de242e650cbf20b54e2dbe5c9434e77
https://doi.org/10.1016/j.optmat.2019.01.044
https://doi.org/10.1016/j.optmat.2019.01.044
Autor:
Ariosvaldo J.S. Silva, Patresio A.M. Nascimento, Iure S. da Carvalho, Wellisson S. Silveira, Marcos V. dos Santos Rezende
Publikováno v:
Optical Materials. 128:112420
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da239f4906693867dfd97bdfce0746d3
https://doi.org/10.1016/j.optmat.2022.112420
https://doi.org/10.1016/j.optmat.2022.112420
Autor:
D.V. Sampaio, Ariosvaldo J.S. Silva, Patresio A.M. Nascimento, Marcos V. dos S. Rezende, Ronaldo Santos da Silva, Adriano B. Andrade, Benjamin J.A. Moulton
Publikováno v:
Journal of Luminescence. 199:298-301
Cerium, terbium and europium doped LiAl5O8 phorphors with different lithium concentrations (deficiency and excess) are synthesized by the sol-gel method using glucose. The effect of lithium concentration on the X-ray excited optical luminescence (XEO
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7e18fb0a9850c038461728a88081c9f
https://doi.org/10.1016/j.jlumin.2018.03.066
https://doi.org/10.1016/j.jlumin.2018.03.066
Autor:
Patresio A.M. Nascimento, Wellisson S. Silveira, Ariosvaldo J.S. Silva, Marcos V. dos S. Rezende, Iure da S. Carvalho
Publikováno v:
Optik. 231:166363
To improve the luminescence properties of Ce-doped Y3Al5O12 (YAG:Ce3+), Sr ions are used as co-dopants. New defects created in the charge compensation could modify the symmetry of the crystal field around the Ce doping ion. The samples were produced
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cd41b873c3b5791661ee863e0618868
https://doi.org/10.1016/j.ijleo.2021.166363
https://doi.org/10.1016/j.ijleo.2021.166363
Autor:
Patresio A.M. Nascimento, Marcos V. dos S. Rezende, Ariosvaldo J.S. Silva, Thiago De Araujo Nascimento, Iure da S. Carvalho, Wellisson S. Silveira
Publikováno v:
physica status solidi (b). 258:2000584
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c228a665dc9225ee07beccc5fb1734b8
https://doi.org/10.1002/pssb.202000584
https://doi.org/10.1002/pssb.202000584
Autor:
Benjamin J.A. Moulton, D.V. Sampaio, Ronaldo Santos da Silva, Ariovaldo J.S. Silva, Marcos V. dos S. Rezende, Patresio A.M. Nascimento, R.S. Freire, Iure da S. Carvalho, Carlos William de Araujo Paschoal
Publikováno v:
Journal of Alloys and Compounds. 836:155388
Li1+xSr0.99PO4:Eu0.01 (x = 0.1, 0.3 or 0.5) phosphors are prepared using glucose with a modified sol-gel method. X-ray diffraction (XRD), scanning electron microscopy and photoluminescence and X-ray absorption spectroscopy are used to characterize th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b01b09c693d78cfb0d000bf2b049fa0
https://doi.org/10.1016/j.jallcom.2020.155388
https://doi.org/10.1016/j.jallcom.2020.155388