Study on Luminescence Properties and Crystal-Lattice Environment of Eu^2+ in Sr4-xMgxSi3O8Cl4:Eu^2+ Phosphor |
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作者姓名: | 夏志国 孙家跃 杜海燕 |
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作者单位: | CollegeofChemicalandEnvironmentalEngineering,BeijingTechnologyandBusinessUniversity,Beijing100037,China |
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摘 要: | According to the Van Uitert experimental equation, crystal-lattice environment of Eu^2 in the Sr4Si3O8C14 crystal was discussed. By adding Mg^2 to the host lattice, Sr4-xMgxSi3O8C14:Eu^2 was synthesized and the emission peak shifted from blue-green (488nm) to blue-violet (411nm) with the increase of amount of the magnesium which replaced the strontium. By analyzing the spectra of Sr4-xMgxSi3O8C14:Eu^2 the two Eu^2 emission centers were found because of the change of crystal-lattice environment in the host and the crystal structure was obtained by X-ray diffraction data.
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关 键 词: | 荧光材料 Sr4-xMgxSi3O8Cl4 铕 掺杂 稀土 发光性能 晶格 XRD |
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