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红色长余辉材料的制备与表征

Preparation and Characterazition of Long-afterglow Luminescence Materials

【作者】 肖志义

【导师】 张希艳;

【作者基本信息】 长春理工大学 , 材料学, 2006, 硕士

【摘要】 本文综述了长余辉粉体材料和玻璃材料的发展历史和研究现状以及发光机理。在此基础上采用固相反应法和高温熔融法分别制备了CaWO4:Eu3+红色长余辉粉体材料和(60-y)ZnO-(40-x)B2O3-xSiO2-yAl2O3:Mn2+红色长余辉玻璃。研究了Eu3+的含量、制备工艺对CaWO4:Eu3+发光粉的影响。研究了基质配方的变化、Mn2+的浓度、助熔剂的含量以及其它离子共掺对Mn2+激活的(60-y)ZnO-(40-x)B2O3-xSiO2-yAl2O3红色长余辉玻璃样品发光性能的影响。利用XRD,热释光谱,红外光谱以及荧光光谱等分析手段对产物结构和性能进行了分析。得到了CaWO4:Eu3+发光粉和红色长余辉玻璃的最佳配方,并确定了高温固相法合成CaWO4:Eu3+发光粉的最佳条件。

【Abstract】 This thesis review the history of long-lasting phosphorescent powder materials and glass materials comprehensively, presents their recent progress and summarizes the long-lasting phosphorescent mechanism. On the basis of this summarization CaWO4:Eu3+ red long-lasting powder materials and (60-y)ZnO-(40-x)B2O3-xSiO2-yAl2O3:Mn2+ red long-lasting glass materials were prepared by solid reaction method and melting method at high temperature respectively.Effects of concentrations of Eu3+ doping, synthesized condition on CaWO4:Eu3+ powder materials were studied. Effects of the change of base glass, concentrations of Mn2+ doping and fluxing agents, co-doped ions on the phosphorescence properties of Mn2+ activated (60-y)ZnO-(40-x)B2O3-xSiO2-yAl2O3 glass were discussed. XRD, IR-spectra, fluorescece spectra and thermoluminescence spectra were adopted to investigate the structure and properties of the samples. The optimum compose of the CaWO4:Eu3+ aferglow powder material and long-lasting glass material were gained, and the optimum condition of sintering the CaWO4:Eu3+ aferglow powder material was determined.

【关键词】 红色长余辉CaWO4:Eu3+Mn2+掺杂玻璃
【Key words】 red long afterglowCaWO4:Eu3+Mn2+ doped glass
  • 【分类号】TB34
  • 【被引频次】3
  • 【下载频次】354
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