Journal of Guangxi Normal University(Natural Science Edition) ›› 2013, Vol. 31 ›› Issue (4): 84-87.

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Effect of Si/Mo Radio on Core-shell Structured SiO2/CaMoO4:Eu3+, Li+ Red Phosphor Synthesized

WANG Xiao-feng1,2, WANG Xia1,2, PENG Gui-hua1,2, LIANG Zhen-hua1,2, WU Jing-long1,2   

  1. 1.College of Chemistry and Pharmaceutical Science,Guangxi Normal University,Guilin Guangxi 541004,China;
    2.Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources,Ministry of Education of China,Guangxi Normal University,Guilin Guangxi 541004,China
  • Received:2013-07-13 Online:2013-12-20 Published:2018-11-26

Abstract: The spherical core-shell structured SiO2/CaMoO4:Eu3+,Li+ phosphors were prepared by a combined approach of homogeneous precipitation and combustion synthesis.The effects of different Si/Mo radio on the crystal structure,morphology and luminescence properties of the SiO2/CaMoO4:Eu3+,Li+ phosphors were systematically investigated by powder X-ray diffraction,scanning electron microscopy,transmission electron microscopy and photoluminescence,respectively.The results show Si/Mo radio is 20:1,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+,Li+ microspheres exhibited an intensive red emission of 617 nm under near ultraviolet (395 nm) excitation.

Key words: Si/Mo radio, core-shell structure, silica microsphere, calcium molybdate phosphors

CLC Number: 

  • O611.4
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