| A Novel Synthesis of Alkaline Earth Silicate Phosphor Sr3MgSi2O8： Eu^2＋, Dy^3＋ |
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| 引用本文： | 潘文 宁桂玲 王静慧 林源. A Novel Synthesis of Alkaline Earth Silicate Phosphor Sr3MgSi2O8： Eu^2＋, Dy^3＋[J]. 中国化学, 2007, 25(5): 605-608. DOI: 10.1002/cjoc.200790113 |
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| 作者姓名： | 潘文 宁桂玲 王静慧 林源 |
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| 作者单位： | State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, Liaoning 116012, China |
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| 基金项目： | Project supported by the National Natural Science Foundation （No. 20376009） and the Liaoning Natural Science Foundation （No. 20032129） of China. |
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| 摘 要： | A novel method for synthesizing long afterglow silicate phosphor Sr3MgSi2O8：Eu^2＋,Dy^3＋using TEOS and inorganic powders as reactants was reported. Acetic acid as a catalyzer controlled the hydrolysis of TEOS by adjusting pH value of the system. The morphologies of precursor were characterized by transmission electron microscope （TEM）. The structure and optical properties of the phosphor powders were systematically investigated by means of X-ray diffraction and spectrofluorometry. TEM images have reflected the core-shell structure and quasi-spherical morphology of the precursor particles. It was found that the single-phase Sr3MgSi2O8 crystalline structures were obtained at 1050 and 1250 ℃ for the samples prepared with the nano-coating method and the solid state reaction, respectively. The emission intensities of the phosphors prepared by the present method were higher than those by the conventional process. Also, the afterglow characteristic was better than that prepared by solid-state reaction in the comparable condition.
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| 关 键 词： | 碱土硅酸盐 磷光体 Sr3MgSi2O8： Eu^2＋ Dy^3＋ 合成方法 发光材料 |
| 修稿时间： | 2006-04-252006-12-20 |
A Novel Synthesis of Alkaline Earth Silicate Phosphor Sr3MgSi2O8:Eu2+,Dy3+ |
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| PAN, Wen NING, Gui-Ling WANG, Jing-Hui LIN, Yuan. A Novel Synthesis of Alkaline Earth Silicate Phosphor Sr3MgSi2O8:Eu2+,Dy3+[J]. Chinese Journal of Chemistry, 2007, 25(5): 605-608. DOI: 10.1002/cjoc.200790113 |
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| Authors: | PAN Wen NING Gui-Ling WANG Jing-Hui LIN Yuan |
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| Affiliation: | State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, Liaoning 116012, China |
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| Abstract: | A novel method for synthesizing long afterglow silicate phosphor Sr3MgSi2O8:Eu2+,Dy3+using TEOS and inorganic powders as reactants was reported. Acetic acid as a catalyzer controlled the hydrolysis of TEOS by adjusting pH value of the system. The morphologies of precursor were characterized by transmission electron microscope (TEM). The structure and optical properties of the phosphor powders were systematically investigated by means of X‐ray diffraction and spectrofluorometry. TEM images have reflected the core‐shell structure and quasi‐spherical morphology of the precursor particles. It was found that the single‐phase Sr3MgSi2O8 crystalline structures were obtained at 1050 and 1250 °C for the samples prepared with the nano‐coating method and the solid state reaction, respectively. The emission intensities of the phosphors prepared by the present method were higher than those by the conventional process. Also, the afterglow characteristic was better than that prepared by solid‐state reaction in the comparable condition. |
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| Keywords: | nano‐coating precursor phosphor Sr3MgSi2O8:Eu2+ Dy3+ |
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