Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Marcello X. Façanha"'
Autor:
J. C. Sales, Humberto Dionísio de Andrade, Marcello X. Façanha, Idalmir de Souza Queiroz Júnior, Felipe F. do Carmo, João P.C. do Nascimento, D. X. Gouveia, Antonio Sergio Bezerra Sombra
Publikováno v:
Journal of Electronic Materials. 49:6009-6015
Er3+–Pr3+–Yb3+ co-doped LaNbO4 (LNO) phosphors were obtained by solid-state reaction and their up-conversion properties have been studied. The x-ray diffraction and Rietveld’s refinement revealed no evidence of significant structural changes or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0fff3ac33f9d1f7a3674a972635ba359
https://doi.org/10.1007/s11664-020-08329-x
https://doi.org/10.1007/s11664-020-08329-x
Autor:
Antonio Sergio Bezerra Sombra, João P.C. do Nascimento, Felipe F. do Carmo, Marcello X. Façanha
Publikováno v:
Materials Letters. 254:65-68
Red, green and blue upconversion emissions has been reported under the 808 nm excitation in Ln3+ (Ln3+ = Er3+, Tm3+, Yb3+) doped YNbO4 (YNO) phosphors prepared by the solid-state reaction method. Warm-white upconversion emission with CIE color coordi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fda808c7a3b9cbbe6ab7349e482ee15e
https://doi.org/10.1016/j.matlet.2019.07.020
https://doi.org/10.1016/j.matlet.2019.07.020
Autor:
Marcello X. Façanha, Antonio Sergio Bezerra Sombra, F. F. do Carmo, J. C. Sales, João P.C. do Nascimento, S. J. T. Vasconcelos
Publikováno v:
Ferroelectrics. 545:55-61
The solid-state reaction method was used for obtaining LaNbO4 (LNO) samples doped with Pr3+ (1 mol%). Results of XRD and Rietveld refinement confirms that the LNO phase remains in the doped sample ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::941cd8ad0373a8b8669b06385a0f5074
https://doi.org/10.1080/00150193.2019.1621711
https://doi.org/10.1080/00150193.2019.1621711
Autor:
Marcello X. Façanha, Antonio Sergio Bezerra Sombra, Carlos Jacinto, Felipe F. do Carmo, Artur S. Gouveia-Neto, W.Q. Santos, Tasso O. Sales, João P.C. do Nascimento
Publikováno v:
Journal of Luminescence. 204:676-684
Er3+/Tm3+/Yb3+ tri-doped YNO phosphors were obtained by the solid-state reaction method. X-ray diffraction, Raman spectroscopy, and FE-SEM were employed for characterization of the materials, and no significant structural changes have been noticed. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb83f2022a0f6ea06b7c3b6eb39dc53d
https://doi.org/10.1016/j.jlumin.2018.08.079
https://doi.org/10.1016/j.jlumin.2018.08.079
Autor:
Tasso O. Sales, Marcello X. Façanha, Carlos Jacinto da Silva, Antonio Sergio Bezerra Sombra, João P.C. do Nascimento, Artur S. Gouveia-Neto, Felipe F. do Carmo, W.Q. Santos
Publikováno v:
Journal of Luminescence. 204:539-547
BaBi2Nb2O9:Li+/Tm3+/Er3+/Yb3+ phosphors were successfully synthesized by the high-temperature solid-state method and up-conversion white-light emission has been achieved by tuning of the Tm3+ and Li+ contents. X-ray diffraction and room temperature p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c66708677545ecaab7a0597a2cc09be1
https://doi.org/10.1016/j.jlumin.2018.08.016
https://doi.org/10.1016/j.jlumin.2018.08.016
Autor:
Humberto Dionísio de Andrade, Idalmir de Souza Queiroz Júnior, Marcello X. Façanha, Felipe F. do Carmo, A. J. M. Sales, José Eduardo Vasconcelos De Morais, João P.C. do Nascimento, Antonio Sergio Bezerra Sombra
Publikováno v:
Optical Materials. 97:109399
Pr3+ – Yb3+ co-doped LaNbO4 phosphors were obtained by solid-state reaction and their upconversion properties were investigated. XRD analysis demonstrated the absence of secondary phase in the as-prepared materials. UC measurements revealed RGB and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82688d4c1c059687bade3a63735f8c8d
https://doi.org/10.1016/j.optmat.2019.109399
https://doi.org/10.1016/j.optmat.2019.109399
Publikováno v:
Surface and Coatings Technology. 201:7216-7221
The mechanism of Cu–Sn nucleation and electrodeposition was studied by cyclic voltammetry, chronoamperometry, scanning electron microscopy and energy dispersive X-rays. Cu–Sn alloys were deposited and dissolved in the solution containing metallic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53319fc7eaecc81e9931e6c0adfafd43
https://doi.org/10.1016/j.surfcoat.2007.01.029
https://doi.org/10.1016/j.surfcoat.2007.01.029