JORMA HÖLSÄ
28 resultados
Resultados de Busca
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Resumo IPEN-doc 22180 Red persistent luminescence in CaWO4:Eusp(3+) phosphors2015 - BARBOSA, HELLIOMAR P.; MUSTAFA, DANILO; RODRIGUES, LUCAS C.V.; FELINTO, MARIA C.F.C.; HOLSA, JORMA; BRITO, HERMI F.Artigo IPEN-doc 21337 Low temperature synthesis and optical properties of the Rsub(2)Osub(3):Eusup(3+) nanophosphors (Rsup(3+):Y, Gd and Lu) using TMA complexes as precursors2015 - SILVA, I.G.N.; RODRIGUES, L.C.V.; SOUZA, E.R.; KAI, J.; FELINTO, M.C.F.C.; HOLSA, J.; BRITO, H.F.; MALTA, O.L.Artigo IPEN-doc 21309 Structure-property relationship of luminescent zirconia nanomaterials obtained by sol-gel method2015 - CARVALHO, JOSE M.; RODRIGUES, LUCAS C.V.; FELINTO, MARIA C.F.C.; NUNES, LUIZ A.O.; HOLSA, JORMA; BRITO, HERMI F.Artigo IPEN-doc 20504 Red-green emitting and superparamagnetic nanomarkers containing Fesub(3)Osub(4) functionalized with calixarene and rare earth complexes2014 - KHAN, LATIF U.; BRITO, HERMI F.; HOLSA, JORMA; PIROTA, KLEBER R.; MURACA, DIEGO; FELINTO, MARIA C.F.C.; TEOTONIO, ERCULES E.S.; MALTA, OSCAR L.Resumo IPEN-doc 20374 Green emitting up-conversion from CdSiOsub(3):Ybsup(3+), Tbsup(3+) materials2014 - RODRIGUES, L.C.V.; PEDROSO, C.C.S.; LAIHINEN, T.; NAKAMURA, L.K.O.; FELINTO, M.C.F.C.; LASTUSAARI, M.; HOLSA, J.; BRITO, H.F.Resumo IPEN-doc 20382 Rapid microwave preparation of Tisup(3+) doped Lusub(2)Osub(3) persistent luminescence materials2014 - CARVALHO, J.M.; PEDROSO, C.C.S.; FELINTO, M.C.F.C.; BRITO, H.F.; HOLSA, J.Resumo IPEN-doc 14678 Persistent luminescence BaAlsub(2)Osub(4):Eusup(2+), Dysup(3+) phosphor incorporated in silica: water resistance2009 - LOURENCO, A.V.S.; RODRIGUES, L.C.V.; KODAIRA, C.A.; STEFANI, R.; BRITO, H.F.; FELINTO, M.C.F.C.; HOLSA, J.Barium aluminates doped with divalent europium and trivalent dysprosium were prepared with the combustion method and then incorporated with silica using the microemulsion method. The incorporated phosphor particles showed improved water resistance, preserving much of the prior persistent luminescence properties even after interaction with water whereas the nonincorporated particles loosed the original persistent luminescence. The infrared absorption spectroscopy, X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and photoluminescence studies were used to characterize the phosphors. The pH of the phosphor-water mixture after the reaction with water was measured to compare the water resistance of the materials. The photoluminescence of the incorporated BaAl2O4:Eu2+,Dy3+ with water modified slightly the 4f6 5d1 →4f7 transition of Eu2+, however.Resumo IPEN-doc 16280 Persistent luminescence of barium aluminate doped with Eusup(2+) prepared by the combustion method2008 - RODRIGUES, L.C.V.; STEFANI, R.; CARVALHO, C.A.A.; BRITO, H.F.; KODAIRA, C.A.; FELINTO, M.C.F.C.; HOLSA, J.Resumo IPEN-doc 16283 Encapsulation study of persistent luminescent material in silica2008 - LOURENCO, A.V.S.; RODRIGUES, L.C.V.; KODAIRA, C.A.; STEFANI, R.; CARVALHO, C.A.A.; BRITO, H.F.; FELINTO, M.C.F.C.; HOLSA, J.Resumo IPEN-doc 16057 Effect dopant concentration on the persistent luminescence of Tbsup(3+) doped cadmium silicate2010 - RODRIGUES, L.C.V.; BRITO, H.F.; FELINTO, M.C.F.C.; HOLSA, J.
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