物理化学学报 >> 2006, Vol. 22 >> Issue (08): 1030-1033.doi: 10.3866/PKU.WHXB20060824

研究简报 上一篇    下一篇

PDP用纳米BaMgAl10O17:Eu荧光粉的燃烧合成及发光性能

陈哲;严有为   

  1. 华中科技大学 模具技术国家重点实验室 武汉 430074
  • 收稿日期:2006-02-24 修回日期:2006-04-14 发布日期:2006-08-04
  • 通讯作者: 严有为 E-mail:wutpds@public.wh.hb.cn

Combustion Synthesis and Luminescent Properties of blue-emitting Nanocrystalline Phosphor for PDP Application

CHEN Zhe;YAN You-Wei   

  1. State Key Laboratory of Die &Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
  • Received:2006-02-24 Revised:2006-04-14 Published:2006-08-04
  • Contact: YAN You-Wei E-mail:wutpds@public.wh.hb.cn

PDF

3640

赞

摘要： 采用溶液燃烧合成法直接合成了PDP用纳米BaMgAl10O17∶Eu(BAM)荧光粉, 并对产物进行了XRD、TEM分析和发光性能测试. 结果表明, 合成产物由单一的BAM组成, 且结晶完好, 不存在位错、孪晶等缺陷；BAM颗粒近似球形, 平均粒径约为20 nm；在334 nm UV光激发下, 样品的发射峰值波长为450 nm, 归属于Eu2+离子的4f 65d→ 4f 7(8S7/2)宽带允许跃迁, 与稀土三基色荧光材料中的蓝色组分发光完全一致. 与高温固相法相比, 燃烧合成法具有合成温度低, 反应时间短, 所得产物纯净且颗粒细小, 发光强度高等优点.

关键词: 等离子显示器（PDP), 纳米粉末, BaMgAl10O17∶Eu（BAM）, 燃烧合成, 发光性能

Abstract: Nanocrytalline BaMgAl10O17∶Eu (BAM) blue- emitting phosphor for plasma display panel(PDP) application was rapidly prepared by low- temperature combustion synthesis. The results of XRD and TEM analysis show that the sample is monophasic and well- crystallized, in which displace as well as twin crystal do not exist. Moreover, BAM nanocrystals exhibit an ideal spherical morphology with a grain size of about 20 nm. The luminescent property of the BAM phosphor is also measured and analyzed. The emission spectrum of the BAM consists of a wide band with the peak at 450 nm, which corresponds to the transition from the 4f 65d excited state to the 4f 7 ground state of Eu2+ ion. The blue emission is excellently consistent with commission international del′eclairage(CIE) chromaticity and quite suitable for plasma display panels. The phosphors synthesized via combustion method exhibit higher emission intensity than those prepared by solid- state method because high purity and good crystallinity of the phosphors synthesized via a combustion process cause an increase in luminescence efficiency.

Key words: PDP, Nano powder, BAM phosphor, Combustion synthesis, Luminescent property