| R_3GeVO_9(R=Y,La)∶Eu~(3+)(或Dy~(3+))的合成及其发光性质 |
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| 引用本文： | 张黔玲,王淑彬,苏锵. R_3GeVO_9(R=Y,La)∶Eu~(3+)(或Dy~(3+))的合成及其发光性质[J]. 化学研究, 1998, 0(2) |
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| 作者姓名： | 张黔玲 王淑彬 苏锵 |
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| 作者单位： | 中国科学院长春应用化学研究所稀土化学与物理开放实验室!长春，130022，中国科学院长春应用化学研究所稀土化学与物理开放实验室!长春，130022，中国科学院长春应用化学研究所稀土化学与物理开放实验室!长春，130022 |
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| 摘 要： | 采用高温固相法合成了稀土复合钒锗酸盐R3GeVO9(R =Y ,La)体系 ,并以此为基质研究了Eu3+和Dy3+在其中的发光性质 ,以Eu3+为结构探针探讨了Eu3+在R3GeVO9(R =Y ,La)中的格位情况。同时 ,还研究了被取代离子R3+的Z/r对Eu3+的红橙比和Dy3+的黄蓝比的影响以及浓度、温度和Bi3+对它们发光强度的影响。
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| 关 键 词： | 铕 镝 发光 |
Synthesis and Luminescence Properties of R_3GeVO_9(R=Y,La)∶Eu~(3+ ) (or Dy~(3+)) |
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| Zhang Qianling Wang Shubin Su Qiang. Synthesis and Luminescence Properties of R_3GeVO_9(R=Y,La)∶Eu~(3+ ) (or Dy~(3+))[J]. Chemical Research, 1998, 0(2) |
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| Authors: | Zhang Qianling Wang Shubin Su Qiang |
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| Abstract: | From the results of X ray diffraction,it is certain that R 3GeVO 9(R=Y,La) can be obtained by solid state reaction with R 2O 3 and GeO 2.The luminescence properties of Eu 3+ and Dy 3+ in R 3GeVO 9(R=Y,La) have been systematically investigated.The strong absorption of GeVO 9 9 means that both matrixes can sensitize Eu 3+ and Dy 3+ .Eu 3+ occupies site without inverse center in the two matrixes. The red to orange intensity ratio (R/O) of Eu 3+ and the yellow to blue intensity ratio (Y/B) of Dy 3+ rise with the increase of the charge to ratio(Z/r) of R 3+ .The influence of Bi 3+ and temperature on the emission intensity of Eu 3+ and Dy 3+ are also investigated. |
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| Keywords: | europium dysposium luminescence |
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