期刊
RSC ADVANCES
卷 4, 期 95, 页码 53237-53244出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra09136a
关键词
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资金
- National Natural Science Foundations of China [51002146, 51272242]
- Natural Science Foundations of Beijing [2132050]
- Program for New Century Excellent Talents in the University of the Ministry of Education of China [NCET-12-0950]
- Beijing Nova Program [Z131103000413047]
- Beijing Youth Excellent Talent Program [YETP0635]
- Funds of the State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University [KF201306]
- University of Science and Technology Beijing
CaMoO4: Eu3+, Li+ red phosphors have been successfully achieved by a microwave-assisted solid-state reaction, and their morphologies and luminescence properties have been studied in this paper. The as-prepared Ca0.9MoO4: 0.05Eu(3+), 0.05Li(+) powders occur as uniform spherical particles with a size distribution of 1-2 mu m via the optimized reaction temperature at 600 degrees C and reaction time of 1 h. The phosphors showed an intense red emission with maxima at 615 nm, which was ascribed to the Eu3+ electric dipole transition of D-5(0) -> F-7(2). The comparison on the morphology and luminescence property between the as-prepared samples and the samples obtained by the conventional method was discussed in detail. A possible microwave-assisted solid-state reaction mechanism was proposed, and the effect of the microwave sintering temperature and time was also discussed.
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