Influence of annealing temperature on luminescent properties of Eu~(3+)/V~(5+) co-doped nanocrystalline Gd_2Ti_2O_7 powders |
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| Authors: | ZHANG Ying DING Linghong PANG Xinling ZHANG Weifeng |
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| Affiliation: | School of Physics and Electronics Institute of Microsystem Physics Henan University |
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| Abstract: | Nanosized Gd2(1-x)Eu2xTi2O7:yV5+ phosphors were prepared via sol-gel method and characterized with X-ray diffraction,Raman spectroscopy,diffuse reflectance spectra and photoluminescence spectra.Their PL properties were investigated as functions of the Eu3+ doping concentration and annealing temperature.The results indicated that the as-prepared samples showed a strong emission of Eu3+ under the irradiation of 303 nm.For Eu3+-doped Gd2Ti2O7,the orange emission at 586 nm was the strongest,which was correspond... |
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| Keywords: | photoluminescence Gd_2Ti_2O_7 Eu~(3+) V~(5+) phosphors sol-gel method rare earths |
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