影像科学与光化学 ›› 2005, Vol. 23 ›› Issue (1): 1-5.DOI: 10.7517/j.issn.1674-0475.2005.01.1

• 研究论文 •    下一篇

新型GdAlO3:RE荧光粉多元掺杂及发光机制研究

罗岚1, 刘庆峰2, 刘茜2   

  1. 1. 南昌大学, 材料科学与工程学院, 江西, 南昌, 330047;
    2. 中国科学院, 上海硅酸盐研究所, 高性能陶瓷和超微结构国家重点实验室, 上海, 200050
  • 收稿日期:2004-06-21 修回日期:2004-09-03 出版日期:2005-01-23 发布日期:2005-01-23
  • 通讯作者: 罗岚,女,E-mail:luolan1190@sina.com.cn.
  • 基金资助:
    国家自然科学基金委主任基金项目(20151003/B01);上海市科学技术发展基金项目(纳米科技专项)(0259nm021);上海市科委重点基金项目(02JC14015).

Luminescent Properties and Mechanism of Co-Doped GdAlO3 :RE

LUO Lan1, LIU Qing-feng2, LIU Qian2   

  1. 1. School of Material Science and Engineering, Nanchang University, Nanchang 330047, Jiangxi, P. R. China;
    2. State Key Lab of High Perf ormance Ceramics and Superfine Microstructure, Shang Chinese A cademy of Sciences, Shanghai 200050, P. R. China
  • Received:2004-06-21 Revised:2004-09-03 Online:2005-01-23 Published:2005-01-23

摘要: 采用柠檬酸盐硝酸盐燃烧法制备GdAlO3:RE荧光粉体.在紫外光激发下(254nm)发现Pr共掺杂对GdAlO3:Eu红色荧光粉体发光有降低作用;Ce共掺杂对GdAlO3:Tb绿色荧光粉体发光有降低作用.激发谱研究表明,共掺杂时分别存在Eu→Pr、Tb→Ce的声子支持的共振能量传递,造成GdAlO3:Eu、GdAlO3:Tb荧光粉体发光强度降低.

关键词: 钙钛矿型铝酸钆盐, 荧光粉体, 能量传递, 柠檬酸盐硝酸盐燃烧合成法

Abstract: GdAlO3:RE powder was prepared by nitric-citric process. Luminescent intensity of GdAlO3:Eu decreased when it was co-doped with Pr, and GdAlO3:Tb co-doped with Ce showed the same phenomenon. The results from excitation spectra indicated that there are the resonant energy transfer between Eu and Pr, Tb and Ce, by the absorption and emission of lower energy phonon. The resonant energy transfer between different RE species is one of main reasons why luminesent intensity decreasing.

Key words: gadolinium-aluminum perovskite, luminescence, energy transmission, citrate-nitrate combustion

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