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Influence of rare earth elements (Y, Gd and Lu) on the luminescent properties of green phosphor ZnMoO 4 :Tb 3+
Author(s) -
Xu Y.,
Yang W.,
Li X.,
Li W.,
Ju X.
Publication year - 2014
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.2607
Subject(s) - phosphor , luminescence , analytical chemistry (journal) , scanning electron microscope , doping , materials science , ion , sesquioxide , impurity , precipitation , spectroscopy , lanthanide , energy dispersive x ray spectroscopy , chemistry , mineralogy , physics , optoelectronics , organic chemistry , chromatography , meteorology , metallurgy , composite material , quantum mechanics
(Zn,Ln x )MoO 4 :Tb 3+ (Ln = Y 3+ , Gd 3+ and Lu 3+ ) were prepared using the co‐precipitation method. Phase impurity, morphology and composition were investigated by power X‐ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The experimental results show that crystal structure is not destroyed after doping an appropriate amount of Y 3+ , Gd 3+ and Lu 3+ . EDS analysis reveals that Y, Gd and Lu have been successfully doped into ZnMoO 4 . In addition, the morphology of the phosphors is notably improved, exhibiting homogeneous dispersion morphology and irregular shapes of particle size ~ 0.5–1 µm. The luminescent intensity of (Zn,Ln x )MoO 4 :Tb 3+ (Ln = Y 3+ , Gd 3+ and Lu 3+ ) phosphor is obviously higher than that of ZnMoO 4 :Tb 3+ phosphor. The energy transfer process between trivalent rare earth ions indicates that the inert earth ions can act as an energy bridge from MoO 4 2‐ to Tb 3+ . Copyright © 2013 John Wiley & Sons, Ltd.