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Spherical SiO2/CaMoO4:Eu3+,Li+ Red Phosphor Synths…
Author:WANGXia WEIWan LIANGZhenhua PENGGuihua HANXiaobao 
Unit:Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources  Ministry of Education of China  College of Chemistry and Chemical Engineering & Guangxi Normal University  Guilin 541004  Guangxi  China 
Keyword:silica microsphere  calcium molybdate phosphors  homogeneous precipitation 
Year,volume(Issue):page number:2013,41(5):0-701

The spherical core-shell structured SiO2/CaMoO4:Eu3+,Li+ phosphors were prepared by a combined approach of homogeneous precipitation and combustion synthesis. The structure, morphology and luminescence properties of the SiO2/CaMoO4:Eu3+,Li+ phosphors were characterized by powder X-ray diffraction, scanning electron microscopy, transmission electron microscopy and photoluminescence, respectively. The results show that the products are composed of tetragonal phase CaMoO4 and amorphous SiO2, the CaMoO4:Eu3+,Li+ particles are well-crystallized on the SiO2 spheres, and the obtained microspheres with the uniform size distribution have a core-shell structure. The SiO2/CaMoO4:Eu3+ microspheres exhibited an intensive red emission of 617 nm under near ultraviolet (395 nm) excitation.

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About The Author:
第一作者:王 夏(1987—),男,硕士研究生。 通信作者:梁振华(1978—),男,博士,研究员。
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