| 燃烧法合成xSrO.yAl2O3:Eu2+,Dy3+发光材料及其表征 |
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| 引用本文： | 林珩,陈麟,潘佳妹,罗志英.燃烧法合成xSrO.yAl2O3:Eu2+,Dy3+发光材料及其表征[J].漳州师范学院学报,2006,19(1):59-63. |
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| 作者姓名： | 林珩 陈麟 潘佳妹 罗志英 |
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| 作者单位： | 林珩（漳州师范学院,化学与环境科学系,福建,漳州,363000）
陈麟（漳州师范学院,化学与环境科学系,福建,漳州,363000）
潘佳妹（漳州师范学院,化学与环境科学系,福建,漳州,363000）
罗志英（漳州师范学院,化学与环境科学系,福建,漳州,363000） |
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| 摘 要： | 用燃烧法成功制备了SrAl2O4Eu2+,Dy3+发光材料,样品无需球磨.用x射线粉末衍射和SEM表征材料的相组成、晶体结构和形貌;用激发和发光光谱和紫外-可见光谱表征材料的光学性质.结果表明当锶铝摩尔比Sr/A1=12时,发光基质主相为SrAl2O4,杂质相为Sr3Al206;随着Sr/Al比值减少,发光主相由SrAl204转为Sr7Al12O25,且发光强度增强,说明Sr7Al12O25发光强度大于SrAl204发光强度,Sr3Al206对发光性能有较大的负面影响.这种磷光体的主发射峰是位于570nm附近的带状谱.
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| 关 键 词： | 稀土掺杂 铝酸锶 长余辉 |
| 文章编号： | 1008-7826(2006)01-0059-05 |
| 修稿时间： | 2005年10月10 |
Preparation and Characterization of xSrO .yAl2O3: Eu2+, Dy3+ Phosphors by combustion method |
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| LIN Heng,CHEN Lin,PAN Jia-mei,LUO Zhi-ying.Preparation and Characterization of xSrO .yAl2O3: Eu2+, Dy3+ Phosphors by combustion method[J].Journal of ZhangZhou Teachers College(Natural Science),2006,19(1):59-63. |
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| Authors: | LIN Heng CHEN Lin PAN Jia-mei LUO Zhi-ying |
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| Abstract: | Eu2+ and Dy3+ doped strontium aluminate(SrAl204) phosphor were successfully synthesized by rapid combustion method without hecessity of further ball-grinding.Configuration and morph,grain size of the phosphor were studied by means of SEM and XRD and optical property was researched by means of ultra-visible and spectrophotofluorometer.The XRD result showed that with the decreasing of the Sr/A1 ratios the dominant host phases change from SrAl204 to Sr7Al12O25.The impure phases of Sr3Al2O6 deteriorate rather the luminescent property of SrAl204 : Eu2+,Dy3+.The spectra study of SrAl204 : Eu2+,Dy3+ shows that the main luminescence spectra of SrAl204 : Eu2+,Dy3+ is a broad band spectra peaking at 520 nm. |
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| Keywords: | rare earth doping strontium aluminate long lasting phosphor |
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