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dc.contributor.authorHuang, Chien-Haoen_US
dc.contributor.authorLuo, Liyangen_US
dc.contributor.authorChen, Teng-Mingen_US
dc.date.accessioned2019-04-02T05:59:07Z-
dc.date.available2019-04-02T05:59:07Z-
dc.date.issued2011-01-01en_US
dc.identifier.issn0013-4651en_US
dc.identifier.urihttp://dx.doi.org/10.1149/2.029111jesen_US
dc.identifier.urihttp://hdl.handle.net/11536/150386-
dc.description.abstractA series of Ce3+- and Eu2+-coactivated Ca9Y(PO4)(7) phosphors were synthesized by high temperature solid-state reactions. The Ca9Y(PO4)(7):Ce3+, Eu2+ phosphor showed two emission bands under 292 nm excitation:the one observed at 342 nm was attributed to the 4f(0)5d(1) -> 4f(1) transition of Ce3+ ion emission, and the other found at 492 nm was assigned to the 4 f(6)5d(1) -> 4f(7) transition of Eu2+ ions. Through an effective resonance-type energy transfer, the Ca9Y(PO4)(7):Ce3+, Eu2+ phosphors exhibit a systematically varied hues from ultraviolet to blue-greenish and the relative intensity of ultraviolet and blue-greenish emissions can be tuned by properly tuning the relative dopant composition of Ce3+/Eu2+. The energy transfer from a sensitizer Ce3+ to an activator Eu2+ in Ca9Y(PO4)(7) host matrix was studied and demonstrated to be a resonant type via a dipole-dipole mechanism based on the decay lifetime analysis. Furthermore, we have calculated the critical distance for Ce3+ -> Eu2+ energy transfer to be about 30.7 angstrom by both concentration quenching and spectral overlap methods. (C) 2011 The Electrochemical Society. [DOI: 10.1149/2.029111jes] All rights reserved.en_US
dc.language.isoen_USen_US
dc.titleAn Investigation on the Luminescence and Ce3+ -> Eu2+ Energy Transfer in Ca9Y(PO4)(7):Ce3+,Eu2+ Phosphoren_US
dc.typeArticleen_US
dc.identifier.doi10.1149/2.029111jesen_US
dc.identifier.journalJOURNAL OF THE ELECTROCHEMICAL SOCIETYen_US
dc.citation.volume158en_US
dc.contributor.department應用化學系zh_TW
dc.contributor.departmentDepartment of Applied Chemistryen_US
dc.identifier.wosnumberWOS:000295626000073en_US
dc.citation.woscount30en_US
Appears in Collections:Articles