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共沉淀法制备超细长余辉发光材料铝酸锶铕镝的研究

Co-Deposited Synthesis of Europium, Dysprosium Co-Doped Strontium Aluminate Long Persistence Ultrafine Phosphors

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【Author】 Zhou Chuancang~(1), Lu Zhongyuan~(1,2,3*), Dai Yatang~(1,2), Wang Bing~1 (1. School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China; 2. School of Material Science and Engineering Sichuan University, Chengdu 610000, China; 3. Key Laboratory for Advanced Building Materials of Sichuan Province, Mianyang 621010, China)

【机构】西南科技大学材料学院；西南科技大学材料学院四川绵阳621010；四川绵阳621010四川大学材料学院；四川成都610000先进建筑材料四川省重点实验室；四川绵阳621010；四川成都610000；四川绵阳621010；

【摘要】用共沉淀法制备了发蓝光的Sr4 Al1 4O2 5∶Eu2 + ,Dy3+ 和发绿光的SrAl2 O4 ∶Eu2 + ,Dy3+ 超细长余辉发光材料。用SEM ,XRD表征了所得磷光材料的形态、粒度和物相组成 ,用荧光分光光度计测定了磷光材料的发光性能。结果发现 ,与固相法合成的产物相比 ,材料的激发光谱和发光光谱均发生了蓝移 ,余辉亮度有所提高。并且探讨了温度和烧结方式对材料发光性能和材料形态的影响更多还原

【Abstract】 Long-lasting ultra-fine phosphor of Sr₄Al₁₄O₂₅∶Eu²⁺, Dy³⁺ of emitting blue light and SrAl₂O₄∶Eu²⁺, Dy³⁺ of emitting green light with high brightness and long afterglow were synthesized by co-deposited method. Structure and morphology, grain size of phosphor were tested by the SEM and XRD. Optical properties of phosphor were examined by （spectrophoto-）fluorometer. The results show that exciting spectra and emitting spectra of the products synthesized by co-（deposited） method shows blue shift. The influence of temperature and sinter manner on luminescence properties and morphology of phosphor were studied.更多还原

【关键词】共沉淀法合成；长余辉发光材料； SrAl2O4∶Eu2+,Dy3+； Sr4Al14O25∶Eu2+,Dy3+；超细粉体；
【Key words】 co-deposited synthesis； long persistence material； SrAl₂O₄∶Eu²⁺, Dy³⁺； Sr₄Al₁₄O₂₅∶Eu²⁺, Dy³⁺； ultra-fine powder；

【基金】国防基础科学研究项目 (K12 0 3 0 6110 91)

【文献出处】稀有金属 ,Chinese Journal of Rare Metals , 编辑部邮箱 ,2005年01期

【分类号】TB34
【被引频次】54
【下载频次】478

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