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Complete solid–solution AgYb1−xEux(MoO4)2: Preparation, efficient red-luminescence, and high thermal stability
Ist Teil von
Materials letters, 2015-12, Vol.161, p.301-304
Ort / Verlag
Elsevier B.V
Erscheinungsjahr
2015
Link zum Volltext
Quelle
Elsevier ScienceDirect Journals Complete
Beschreibungen/Notizen
AgYb1−xEux(MoO4)2 (x=0.01–1) solid solution phosphors were prepared by conventional solid state reaction. The samples were characterized by XRD measurements, photoluminescence (PL) spectra, temperature dependent PL spectra, the absolute luminescence internal quantum efficiency (QE) and CIE coordinates. Compared with commercial Y2O2S:Eu3+ phosphor, AgYb1−xEux(MoO4)2 could be efficiently excited by near UV and blue lights to realize stronger red emission with maximum QE of 62%. They present stable luminescence and color purity at high temperature by investigating temperature dependent PL spectra.
•Complete solid–solution AgYb1−xEux(MoO4)2 were developed.•The phosphors have efficient absorption in the near-UV and blue region.•AgEu(MoO4)2 with QC of 62% has high thermal stability with an activation energy 0.256eV.