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| 提高等离子荧光粉发光性能的实验研究 | |
| 引用本文： | 马超,雷玉勇,顾东雅,钱辉,邱刚,邵义. 提高等离子荧光粉发光性能的实验研究[J]. 中国陶瓷工业, 2006, 13(5): 21-25,20 |
| 作者姓名： | 马超 雷玉勇 顾东雅 钱辉 邱刚 邵义 |
| 作者单位： | 1. 西华大学机械工程与自动化学院,成都:610039 2. 盐城纺织职业技术学院 3. 北京对外经济贸易大学 4. 沈阳工业大学材料科学与工程学院,110023 |
| 基金项目： | 西华大学校科研和教改项目;四川省应用基础研究计划 |
| 摘 要： | 对几种等离子荧光粉的发光和发射性能进行了测试，选择了蓝色和绿色荧光粉用高温固相反应法进行掺杂Mg、Sr、Eu、La、Ca等稀土离子，来提高荧光粉的发光性能。发光性能的测试结果表明，在一定浓度范围内，Sr，La和Mg的掺杂能够有效地提高BaAl12O19：Mn在真空紫外线激发下的发光强度；晶体结构中，Mg取代了部分Al的晶格位置，Sr和La取代了部分Ba的晶格位置。Mg的掺杂使得BaAl12O19：Mn晶胞参数中的a值增大，c值减小，晶胞体积增大，而Sr和La对Ba的取代使得BaAl12O19：Mn的a,c值和晶胞体积都减小，因而减小了对发光有害的缺陷浓度，并增加了荧光粉的热稳定性，减少了余辉长度，提高了荧光粉的发光性能。 |
| 关 键 词： | 荧光粉 发光强度 高温固相反应 晶格 稀土 |
| 文章编号： | 1006-2874（2006）05-0021-05 |
| 收稿时间： | 2006-03-05 |
| 修稿时间： | 2006-03-05 |
STUDY ON IMPROVING THE PERFORMANCE OF PHOSPHOR POWDER |
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| Ma Chao,Lei Yuyong,Gu Dongya,Qian Hui,Qiu Gang,Shao Yi. STUDY ON IMPROVING THE PERFORMANCE OF PHOSPHOR POWDER[J]. China Ceramic Industry, 2006, 13(5): 21-25,20 | |
| Authors: | Ma Chao Lei Yuyong Gu Dongya Qian Hui Qiu Gang Shao Yi |
| Affiliation: | 1.School of Mechanic Engineering and Automation, West China University, Chengdu 610039; 2.Yancheng Textile Vocational Technology College; 3.University of International Business and Economy; 4. School of Material Science and Engineering, Shenyang University of Technology, 110023 |
| Abstract: | Tests were conducted of luminescent properties and emitting characteristics of several PDP phosphors.To promote the phosphor luminescence performance,green BaAl12O19:Mn and blue BaMgAl10O17:Eu2+ phosphors were doped with Mg,Sr,Eu,La and Ca ions through high temperature solid state reaction.Experiment results show: light intensity of BaAl12O19:Mn under vacuum ultraviolet(VUV) excitation was enhanced with doping contents of Sr,La and Mg in a specified range;Mg substituted for part of Al,while Sr and La for part of Ba;Mg doping increased the lattice parameter a of BaAl12O19:Mn,while decreased its c,and the lattice volume became bigger;however,substitution of Sr and La for Ba decreased both a and c of BaAl12O19:Mn,and the lattice volume became smaller,thus lowering the defect concentration which was harmful to lighting,strengthening the thermal stability of phosphors,reducing the length of after-glow and improving the luminous intensity of PDP powders. |
| Keywords: | PDP powder luminous intensity high temperature solid state reaction crystal lattice rare earth |
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