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Preparation and luminescence properties of Eu~(3+) doped oxyfluoride borosilicate glass ceramics

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文摘 Oxyfluoride borosilicate glass with the molar composition of 60SiO_2-15B_2O_3-15Na_2O-8CaF_2-2NaF-0.25Eu_2O_3 was synthesized by a traditional glass melting method. Glass ceramics containing CaF_2 nanocrystals were prepared by heat treating the glass samples at a temperature in the range of 620–680 °C. The results of X-ray diffraction (XRD) indicated that the average crystallite size and the lattice constant of CaF_2 nanocrystals increased with the heat treatment temperature increasing. The luminescence spectra showed that the emission intensity of Eu~(3+) doped glass ceramics was stronger than that of the glass matrix, and increased with the heat treatment temperature increasing. The left edge of excitation band shifted to shorter wavelength in the glass ceramics. The local environments of Eu~(3+) ions in the glass and glass ceramics were different.
来源 Journal of Rare Earths ,2012,30(12):1195-1198 【核心库】
DOI 10.1016/s1002-0721(12)60204-x
关键词 oxyfluoride ; glass ceramics ; luminescence ; local environment ; rare earths
地址

School of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang, 110142

语种 英文
ISSN 1002-0721
学科 化学工业
基金 Project supported by Educational Department of Liaoning
文献收藏号 CSCD:4733427

参考文献 共 19 共1页

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