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《Chinese Journal of Luminescence》 2005-01
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Synthesis and Characterization of Surface-modified BaAl_(12)O_(19)∶Mn~(2+)

WANG Xiao-jun~1, DUAN Gui-hua~2, ZHAO Xiao-xia~1, ZHAO Xue-ping~3, CUI Yu-ming~2, SHEN Lian-chun~2, XIE Yi-hua~1, YANG Hua~2(1. Key Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;2. College of Chemistry, Jilin University, Changchun 130023, China;3. College of Physics, Jilin University, Changchun, 130023, China)  
The plasma display panels (PDPs) are regarded as a medium of large-format panel display. The performance and lifetime of PDPs are strongly related to the nature of phosphors used in it. The working of PDPs is realized by a conversion of vacuum ultraviolet (VUV) light to visible light. VUV light has higher (energy) than that of the ultraviolet (UV) light used as the excitation source of conventional lamp phosphors, therefore, the surface morphology of PDP phosphors suffering from VUV radiation is damaged, and the (luminescent) performance is (decreased) with PDPs working time, thus shortening the life of PDPs. This indicates that PDP phosphors should not only have high luminescent efficiency, but also are highly resistant to VUV radiation. Obviously, it is (essential) to choose an appropriate coating material to resist the VUV radiation. In this work, BaAl_(12)O_(19)∶Mn~(2+) powders were prepared by the conventional solid-reaction method. MgF_2 was coated at the surface of BaAl_(12)O_(19)∶Mn~(2+) powders by the emulsion method. Some factors, such as reagent concentration and reaction procedure, were investigated, the optimal coating conditions and technique were obtained. The structure analysis of surface-modified (BaAl_(12)O_(19)∶)Mn~(2+) powders was performed by XRD,TEM, IR measurements. The phosphor screen was prepared also for the aging measurement. The results indicated that MgF_2 was successfully coated at the surface of BaAl_(12)O_(19)∶Mn~(2+). The luminescent intensity of surface-modified (BaAl_(12)O_(19)∶Mn~(2+)) decreased only 1.6% at the starting. After aging for 8 h, the luminescence decay of surface-modified samples was significantly less than that of non-modified samples.
【Fund】: 国家自然科学基金(50172046);; 国家“863”计划项目(2002A311160);; 吉林省科技发展计划(20030303)资助项目
【CateGory Index】: O482.31
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【References】
Chinese Journal Full-text Database 2 Hits
1 LIANG Chao1,2,HE Jin-hua1,DONG Yan2, ZHANG Chao1,JIANG Jian-qing2 (1.Jiangsu Bote New Materials Co.,Ltd,Nanjing 210008; 2.School of Material Science and Engineering,Southeast University,Nanjing 210096,China);Preparation of Encapsulated BaAl_(12)O_(19):Mn~(2+) Phosphor with Heterogeneous Nucleation Process[J];China Powder Science and Technology;2007-05
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2 Liang Chao Dong Yan Zhang Chao Wu Zhisen Yu Jin Jiang Jianqing(Department of Material Science and Engineering,Southeast University,Nanjing 210096,China);Research of coating on BaMgAl_(10)O_(17):Eu~(2+) phosphor surface[J];Journal of Southeast University (Natural Science Edition);2005-05
3 PENG Guoxian (Nanjing Electronic Devices Instituts, Nanjing,210016 P.R.China);Luminance Degradation of PDP Phosphore[J];Journal of Electron Devices;2001-03
4 CAO Wen-kui ,XU Zhong-liang,DONG Yan ,YU Jin,JIANG Jian-qing(Department of Material Science and Engineering, Southeast University, Nanjing 210096, China);Progress in Preparation Technique of Aluminate Phosphor for PDP[J];Chinese Journal of Electron Devices;2006-02
5 MA Lin, HU Jian guo, WANG Hui qin, XU Yan(Department of Chemistry,Fudan University, Shanghai 200433,China);Study of Coating on BaMgAl_(10)O_(17):Eu Phosphor Surface[J];Journal of Fudan University;2002-04
6 CAI Hong-hong, BU Ren-an, WANG Wen-jiang (Institute of Physical Electronics and Devices, Xi′an Jiaotong University, Xi′an 710049, China);Study on Deterioration of Phosphors for Color PDP[J];Chinese Journal of Luminescence;2002-02
7 ZHANG Hong jie, FU Lian she, LIN Jun, LI Huan rong, MENG Qing guo, LIU Feng yi, GUO Jun fang, WANG Jun, ZHENG You xuan, YU Jiang bo (Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy;Preparation and Luminescence Properties of Rare Earth/Polymer Hybrid Materials[J];Chinese Journal of Luminescence;2002-03
8 GUO Chong-feng~1, CHU Ben-li~1, XU Jian~1, SU Qiang~(1,2)(1. School of Chemistry and Chemical Engineering, Zhongshan University, Guangzhou 510275, China; 2. State Key Laboratory of Optoelectronic Materials and Technologies, Zhongshan University, Guangzhou 510275, China);Improving the Stability of Alkaline Earth Sulfide Based Phosphors by Oxide Coating[J];Chinese Journal of Luminescence;2004-04
9 LIU Jian-cai,LIAN Shi-xun,ZHU Ai-ling,LI Qi-hua,LIU Li-ming,ZENG Li-hua(Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research,Ministry of Education;College of Chemistry and Chemical Engineering,Hunan Normal University,Changsha 410081,China);Luminescent Properties and Selectivity IR Adsorption of Eu-doped Hydrotalcite-like Compounds[J];Chinese Journal of Luminescence;2007-01
10 Lian Shixun Mao Xianghui Wu Zhenguo Li Chenzhi Zhen Yao (Department of Chemistry, Hunan Normal University, Changsha 410006);PHOTOLUMINESCENCE AND APPLICATION OF CaS∶Cu +, Eu 2+[J];CHINESE JOURNAL OF LUMINESCENCE;1997-02
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