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1. 中国地质大学 教育部纳米矿物材料及应用工程研究中心,湖北 武汉 430074,E-mail:juanjuanwang726@163.com
2. 中国地质大学 材料科学与化学工程学院,湖北 武汉,430074
3. 吉林大学 测试中心,吉林 长春,130026
收稿日期:2009-09-26,
修回日期:1900-01-02,
网络出版日期:2010-04-30,
纸质出版日期:2010-04-30
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王娟娟;袁曦明;李予晋;王永钱;尚淑娟;. PDP用BAM蓝色荧光粉的制备及表面包覆[J]. 液晶与显示, 2010,25(2): 181-185
WANG Juan-juan;YUAN Xi-ming;LI Yu-jin;WANG Yong-qian;SHANG Shu-juan;. Preparation and Surface Coating of BAM Blue Phosphors[J]. 液晶与显示, 2010,25(2): 181-185
采用高温固相法制备PDP用BAM(BaMgAl
10
O
17
: Eu
2+
)蓝色荧光粉
并用硅酸钠对其进行表面包覆。采用PDP真空紫外测试系统、SEM、IR和XRD等分析手段对荧光粉的光学性能、形貌、结构等进行表征。结果表明: Sr
2+
、Ce
4+
、Zn
2+
和Mg
2+
的掺杂有效提高了荧光粉的相对发光强度(约为50%);BAM蓝色荧光粉表面包覆了一层致密的硅氧化合物无机膜
经过表面包覆后
荧光粉的热稳定性显著提高
包覆后亮度衰减比例降低了10%。
BAM phosphors which were prepared by high temperature solid-state method were coated with Na
2
SiO
3
. The spectral properties
surface morphology and the crystal structure were characterized by PDP testing
SEM
IR and XRD
respectively. The results indicated that the relative luminescence intensity increased by 50% through ion doping of Sr
2+
Ce
3+
Zn
2+
and Mg
2+
. The surface of BAM phosphors was evenly coated by SiO
2
. The perfor-mance of anti-degradation has been significantly improved by surface coating. The attenuation of the relative luminescences intensity decreases about 10 %.
. Lu Hsiaochi, Chen Hongkai, Tseng Tzuyi, et al. Photoluminescence of phosphors for PDP with VUV excitation [J]. Electron Spectroscopy and Related Phenomena, 2005, 144-147 :983-985.
. 谢鸿, 陈哲, 严有为. 彩色PDP纳米荧光粉的研究 [J]. 材料导报, 2006, 20 (6): 24-27.
. 倪海勇, 李许波, 丁建红,等.离子显示器用荧光粉的研究进展 [J]. 材料研究与应用, 2008, 2 (2): 83-88.
. 沈静飞, 王海波, 黄如喜, 等. BaMgAl10O17 ∶ Eu2+的MgF2表面包覆[J]. 发光学报, 2008, 29 (2):264-268.
. 侯志青, 刘东州, 侯双印, 等. SiO2含量对绿色荧光粉包膜效果的影响[J]. 表面技术, 2007, 36 (3): 74-79.
. 刑德松, 龚孟濂, 邱学青, 等. 等离子显示用稳定发光BaMgAl10O17 : Eu2+荧光粉的制备及其性能[J]. 中山大学学报(自然科学版), 2007, 46 (1): 57-61.
. 尹承烈. 简明化学手册 [M]. 北京: 化学工业出版社, 1983:18.
. Oshio S,Matsuoka T. Mechanism of luminance decrease in BaMgAl10O17 : Eu2+ phosphors by oxidation [J]. J. Electrochemical Society, 1998, 145(11):3903-3907.
. Kazuyoshi Yokota, Zhang Shuxiu, Katsuaki Kimura. Eu2+-activated barium magnesium aluminate phosphor for plasma displays-phase relation and mechanism of thermal degradation [J]. J. Lumin., 2001, 92(3): 223-227.
. Zhang Zhanhui, Wang Yuhua, Li Xiaoxia, et al. Photoluminescence degradation and color shifts of annealed BaMg Al10O17 : Eu2+ phosphor [J]. J. Lumin., 2007, 122-123:1003-1005.
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