Gd3(1-x)Al5O12:RE3X分立材料芯片制备及发光性能研究

doi:10.7517/j.issn.1674-0475.2005.06.447

影像科学与光化学 ›› 2005, Vol. 23 ›› Issue (6): 447-452.DOI: 10.7517/j.issn.1674-0475.2005.06.447

Gd_3(1-x)Al₅O₁₂:RE_3X分立材料芯片制备及发光性能研究

罗岚¹, 刘庆峰², 刘茜²

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:2005-06-07 修回日期:2005-07-01 出版日期:2005-11-23 发布日期:2005-11-23
通讯作者: 罗岚,E-mail:luolan1190@sina.com.cn.
基金资助:
2005年南昌大学科学基金项目(Z02901);2005年江西省教育厅基金项目(Z02810);自然科学基金委主任基金资助项目(20151003/B01);上海市科学技术发展基金资助项目(纳米科技专项)(0259nm021)

Gd_3(1-x)Al₅O₁₂:RE_3X Phosphors Material Chip's Synthesis and Luminescent Properties

LUO Lan¹, LIU Qing-feng², LIU Qian²

1. School of Material Science and Engineering, Nanchang University, Nanchang 330047, Jiangxi, P. R. China;
2. State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China

Received:2005-06-07 Revised:2005-07-01 Online:2005-11-23 Published:2005-11-23

摘要/Abstract

摘要： 将组合材料芯片技术中四元组合法应用于新型发光材料Gd₃_(1-x)Al₅O₁₂:RE_3X的RE激活剂和敏化剂种类优选.由Gd₃Al₅O₁₂基体材料芯片获得如下的研究结果:1)在紫外激发下(254 nm)Gd₃_(1-x)Al₅O₃:Eu_3X材料具有红色荧光性能;2)Pr(n(Pr):n(Eu)<1:10)、Ce(n(Ce):n(Eu)<1:10)共掺杂时会降低发光强度.光谱分析表明:Pr、Ce能级嵌入,使得激活剂和敏化剂发生共振能量传递,是Gd₃Al₅O₁₂:Eu(简称为GAG:Eu)发光效率降低的主要原因.筛选结果得到柠檬酸盐硝酸盐溶胶凝胶法制备粉体筛选实验结果验证.实验结果表明组合法在发光材料开发上具有高效性.

关键词: 组合材料芯片技术, 铝酸钆, 发光材料, 柠檬酸盐硝酸盐溶胶凝胶法, 共振能量传递

Abstract: The quaternary discrete combinatorial material chip approach was used to optimize new phosphors Gd_3(1-x)Al₅O₁₂:RE_3X.And we got the activator-and-sensitizer-screening results from Gd₃Al₅O₁₂-matrix phosphors material chip as follows: 1) Gd_3(1-x)Al₅O₃:Eu_3x showed red photoluminescence;2) when Pr or Ce was co-doped(n(Pr):n(Eu)<1:10,n(Ce):n(Eu)<1:10),it would decrease the phosphor's luminescence intensity.Spectrum analysis showed that there was resonant energy transfer between Eu and RE by the absorbing or emitting low energy phonons while the Pr or Ce energy level was adding.And this was the main reason for Gd₃Al₅O₁₂: Eu luminescence intensity decreasing.The material chip screening result was also verified by the powder samples,which were produced by nitric-citric process.The experimental work proved the combinatorial material chip approach is an efficient innovation for material research.

Key words: combinatorial, gadolinium-aluminum, luminescence, citrate-nitrate combustion, resonant energy transfer

中图分类号:

TB43

罗岚, 刘庆峰, 刘茜. Gd_3(1-x)Al₅O₁₂:RE_3X分立材料芯片制备及发光性能研究[J]. 影像科学与光化学, 2005, 23(6): 447-452.

LUO Lan, LIU Qing-feng, LIU Qian. Gd_3(1-x)Al₅O₁₂:RE_3X Phosphors Material Chip's Synthesis and Luminescent Properties[J]. Imaging Science and Photochemistry, 2005, 23(6): 447-452.

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Gd_3(1-x)Al₅O₁₂:RE_3X分立材料芯片制备及发光性能研究

Gd_3(1-x)Al₅O₁₂:RE_3X Phosphors Material Chip's Synthesis and Luminescent Properties

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