Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 509, Issue 3, Pages 845-848Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2010.09.106
Keywords
Luminescence; Co-precipitation; Surfactants; Morphology; CaMoO4: Eu3+
Categories
Funding
- Chongqing University [S-09103]
- Natural Science Foundation of Chongqing [2005BA4016]
- National Science Foundation for Post-doctoral Scientists of China [20100470810]
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Using polyethylene glycol (PEG), Tween-80, sodium dodecyl sulphonate (SAS) and cetyltrimethylammonium bromide (CTAB) as surfactants, CaMoO4: Eu3+ red phosphors were prepared by co-precipitation method and their morphology, structure and luminescent properties were investigated by scanning electron microscope (SEM), X-ray diffraction (XRD) and fluorescence spectrometer. The results showed that the introduction of surfactants did not change the crystal structure of CaMoO4: Eu3+ phosphors, but greatly influenced their morphology. CaMoO4: Eu3+ red phosphors were prepared with 5 wt% PEG20000 having small-sized and regularly spherical morphology, and there were greater improvement in the luminescent intensity than phosphors prepared with other surfactants. (C) 2010 Elsevier B.V. All rights reserved.
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