| Single Crystal Growth and Luminescent Properties of Na_5Eu(WO_4)_4 |
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| 引用本文： | 郭常新,潘峻,郭礼群. Single Crystal Growth and Luminescent Properties of Na_5Eu(WO_4)_4[J]. 中国稀土学报(英文版), 1991, 0(3) |
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| 作者姓名： | 郭常新 潘峻 郭礼群 |
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| 作者单位： | Department of Physics University of Science and Technology of China，Hefei 230026，China，Department of Physics，University of Science and Technology of China，Hefei 230026，China，Department of Physics，Anhui University，Hefei 230039，China |
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| 摘 要： | The single crystal growth of stoichiometric host luminescent crystal Na_5Eu(WO_4)_4 has been investigated.Using Na_2WO_4 as a flux,the optimum conditions to grow a pure single crystal by flux-slow-cooling methodhave been determined.A high optical quality single crystal of dimention 4.5 mm has been grown,which is thelargest one as we know so far.The micro-hardness of Na_5Eu(WO_4)_4 single crystal is 3.46×10~3 MPa.Itsrefractive index is 1.81 in white light wavelength region and the specific gravity is 5.65 g/cm~3.The fluorescentand excitation spectra have been determined and the reason of the fluorescent quench of ~5D_2 and ~5D_1 to ~7F_jof Eu~(3 )can be explained as multi-phonon non-radiation transition.
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Single Crystal Growth and Luminescent Properties of Na_5Eu(WO_4)_4 |
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| Guo Chang-Xin Pan Jun. Single Crystal Growth and Luminescent Properties of Na_5Eu(WO_4)_4[J]. Journal of Rare Earths, 1991, 0(3) |
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| Authors: | Guo Chang-Xin Pan Jun |
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| Abstract: | |
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| Keywords: | Na_5Eu(WO_4)_4 single crystal Host luminescence Eu~(3 )luminescence |
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