Chem. J. Chinese Universities ›› 1996, Vol. 17 ›› Issue (10): 1513.
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XU Wen-Guo1, TIAN Yi-Guang1, LIU Miao2, LIU Hai-Tang1, FANG Guang-Hua1, PANG Wen-Qin1
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Abstract: In this paper,we report a new route to syntheses of a series of pure luminescent materials of rare earth phosphates with crystalline phase,microcrystalline glass and glass using microwave method under the condition of appearance microwave power at 20%~70% level(100% power is equal to 650 W of microwave energy, adjusting at 10 level) and reaction time at 7~10 min.The molar ratio of Re2O3 and P2O5 plays an important role for the formation of the luminescent materials of crystalline phase,micro-crystalline glass and glass.The crystal structures were characterized by X-ray diffraction.The infrared spectra of these luminescent materials formed under microwave condition showed that the NO3,NH4+ and H2O species in the starting mixture were completely removed,giving pure luminescent materials for crystalline phase,micro-crystalline glass and glass.The luminescent properties were investigated by fluorescence emission and excitation spectra.The experiment results show that the Vion in the substrate is sensitive to Eu3+,Dy3+,Sm3+,Tb3+ increasing the luminescent intensity,for example,the emission intensity of the sample Y0.95(V0.03, P0.97)O4:Eu0.05 is 80 times more than that of the sample without Vion.
Key words: Microwave synthesis, Rare-earth phosphates, Micro-crystalline glass, Glass state, Luminescent materials
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XU Wen-Guo, TIAN Yi-Guang, LIU Miao, LIU Hai-Tang, FANG Guang-Hua, PANG Wen-Qin. Microwave Synthesis of Luminescent Materials of Rare-earth Phosphates[J]. Chem. J. Chinese Universities, 1996, 17(10): 1513.
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http://www.cjcu.jlu.edu.cn/EN/Y1996/V17/I10/1513