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Continuous zircon-type tetragonal Y_xBi_(0.95-x)VO_4:0.05Dy^(3+) soli solution: synthesis, characterization, and optical properties

Continuous zircon-type tetragonal Y_xBi_(0.95-x)VO_4:0.05Dy^(3+) soli solution: synthesis, characterization, and optical properties
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摘要 We synthesize continuous solid solutions with monophasic zircon-type structure of vanadates of formula YxBi0.95 VO4:0.05Dy^3+ (x = 0-0.95) using a combined method of co-precipitation and hydrothermal synthesis. The X-ray diffractometer patterns confirm the formation of a solid solution of YBi0.95-xVO4:0.05Dy^3+, and the results show that all the samples have monophasic zircon-type structure. The absorption spectra of the prepared phosphors show a blue-shift of the fundamental absorption band edge with increasing Y^3+ content. An intense tunable characteristic emission of Dy^3+ is observed with the increasing ratio of Y/Bi. Finally, the mechanism of luminescence of Dya+ in the YBi0.95 VO4:0.05Dya+ (x = 0-0.95) solid solution is analyzed and discussed. We synthesize continuous solid solutions with monophasic zircon-type structure of vanadates of formula YxBi0.95 VO4:0.05Dy^3+ (x = 0-0.95) using a combined method of co-precipitation and hydrothermal synthesis. The X-ray diffractometer patterns confirm the formation of a solid solution of YBi0.95-xVO4:0.05Dy^3+, and the results show that all the samples have monophasic zircon-type structure. The absorption spectra of the prepared phosphors show a blue-shift of the fundamental absorption band edge with increasing Y^3+ content. An intense tunable characteristic emission of Dy^3+ is observed with the increasing ratio of Y/Bi. Finally, the mechanism of luminescence of Dya+ in the YBi0.95 VO4:0.05Dya+ (x = 0-0.95) solid solution is analyzed and discussed.
出处 《Chinese Optics Letters》 SCIE EI CAS CSCD 2014年第9期54-58,共5页 中国光学快报(英文版)
基金 supported by the National 973 P rogram of China(No.2011CB211708) the National Natural Science Foundation of China(Nos.51272097,61265004,and 61307111)
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