| Preparation and characterization of nanosized GdxBi0.95-xVO4：0.05Eu3＋ solid solution as red phosphor |
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| 引用本文： | 易娟,邱建备,王宇岸,周大成. Preparation and characterization of nanosized GdxBi0.95-xVO4：0.05Eu3＋ solid solution as red phosphor[J]. 中国物理 B, 2014, 0(10): 254-260 |
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| 作者姓名： | 易娟 邱建备 王宇岸 周大成 |
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| 作者单位： | [1]School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China; [2]Shenzhen Water (Group)Co. Ltd.. Shenzhen 518000, China |
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| 基金项目： | Project supported by the National Basic Research Program of China(Grant No.2011CB211708);the National Natural Science Foundation of China(Grant Nos.51272097,61265004,and 61307111);the Natural Science Foundation of Yunnan Province,China(Grant No.2012FD009) |
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| 摘 要： | A complete solid solutions with monophasic zircon-type structure of vanadates of formula GdxBio.95-xVO4：0.05Eu3＋ （x = 04）.95） are synthesized by combined method of co-precipitation and hydrothermal synthesis. Their microstructures and morphologies are characterized by X-ray powder diffraction and transmission electronic microscope, and the results show that each of all the samples has a monophasic zircon-type structure. The absorption spectrum of the prepared phosphor shows a blue-shift of the fundamental absorption band edge with increasing the gadolinium content. Under UV-light and visible-light excitation, all the prepared phosphors show the typical luminescence properties of Eu3＋ in the zircon-type structure. The emission intensity of GdxBi0.95-xVO4：0.05Eu3＋ （x = 0.55） is strongest in all samples under UV-light and visible-light excitations. Finally, the mechanisms of luminescence of Eu3＋ in the GdxBi0.95-xVO4：0.05Eu3＋ （x = 0-0.95） solid solutions are analyzed and discussed.
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| 关 键 词： | 红色荧光体 固溶体 透射电子显微镜 X射线粉末衍射 表征 纳米 制剂 水热合成 |
Preparation and characterization of nanosized Gd_xBi_(0.95-x)VO_4:0.05Eu~(3+) solid solution as red phosphor |
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| Abstract: | red phosphor, solid solution, monophase, band gap |
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| Keywords: | red phosphor solid solution monophase band gap |
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