摘要BaMgAl10O17(BAM)是一种优良的发光基质，其化学稳定性好、发光效率高，具有成为多功能材料的优越条件。本论文实验部分以BAM为基质，通过掺杂Eu和Mn来实现蓝绿双功能复合特性，并利用XRD、SEM、FL来研究其晶相结构、形貌和发光性能。结果表明，利用溶液燃烧合成法能在600℃形成物相良好的BAM，合成温度比传统的高温固相法降低了700℃，并利用燃烧反应使其自身产生的还原气氛对Eu3+进行了还原，从而避免了固相法中的反复高温还原的步骤，节约了能源，降低了成本。Mn、Dy、Sr、Ca的掺入对BAM：Eu2+光谱实现有效的裁剪控制，且燃烧法制备的荧光粉产物颗粒分散均匀，易于涂覆。10537
关键词：蓝绿荧光粉；溶液燃烧合成；发光性能
Abstract
BaMgAl10O17 (BAM) is an excellent luminescent substrate with high chemical stability, high luminous efficiency, which makes it outstanding multifunctional material. In this article, Eu and Mn were co-doped in the BAM to acquire the phosphor with blue and green luminescence. Typically, a series of measurement including XRD, SEM and FL were employed to investigate the microstructure, morphology and luminescent property of the as-prepared phosphor. The result indicated that BAM phase was well shaped by solution combustion synthesis at 600℃, which was about 700℃ lower than that with conventional high temperature solid-state reaction. Furthermore, the Eu3 + in the crystal lattice could reduce Eu3 + automatically during the combustion process, which was facile to cause the energy decrease and the cost lower. Furthermore, Mn, Dy, Sr and Ca elements were co-doped into BAM to obtain the significant and effective tailoring spectra. Moreover, the phosphor power fabricated by solution combustion synthesis was well homodispersed, which were facile to be coated.
KeyWords：Blue-green phosphor；Solution Combustion Synthesis；Spectrum Characteristic
目 录
1 绪论 1
1.1 引言 1
1.2 LED灯用荧光粉的发展现状 1
1.3 白光LED用荧光粉的性质 3
1.4 白光LED国内外研究现状及发展前景 3
1.5 荧光材料的分类 4
1.5.1 铝酸盐系列荧光材料 4
1.5.2 硅酸盐系列荧光材料 5
1.5.3 氮化物／氮氧化物系列荧光材料 5
1.5.4 含硫荧光材料 5
1.5.5 其他荧光材料 5
1.6 荧光粉的分类 6
1.6.1 红色荧光粉 6
1.6.2 绿色荧光粉 6
1.6.3 蓝色荧光粉 7
1.7 稀土荧光粉 7
1.7.1 稀土电子管用荧光粉 7
1.7.2 稀土三基色照明用荧光粉 7
1.8 荧光粉的制备方法 8
1.8.1 高温固相反应法 8
1.8.2 燃烧法 8
1.8.3 溶胶－凝胶法 9
1.9 荧光粉发光机理 10
1.10 选题思路 12
1.10.1 荧光粉末的选择 12
1.10.2 粉末制备的选择 12
1.10.3 具体流程思路 12
2 实验部分 13
2.1 实验药品 13 具有蓝绿复合特性荧光粉材料的研制与性能研究 :http://www.751com.cn/cailiao/lunwen_9629.html