Fe3+、Ce3+共掺杂γ-LiAlO2的发光性质

强人峰; 肖思国; 阳效良; 丁建文; 朱楚桥

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Fe³⁺、Ce³⁺共掺杂γ-LiAlO₂的发光性质

论文 | 更新时间：2020-08-12

- Fe³⁺、Ce³⁺共掺杂γ-LiAlO₂的发光性质
- Luminescence Properties of Fe³⁺ and Ce³⁺ Co-doped γ-LiAlO₂
- 发光学报 2009年30卷第1期页码：7-11
- 作者机构：
  
  1. 湘潭大学材料与光电物理学院湘潭大学现代物理研究所,湖南湘潭,411105
  2. 湘潭大学低维材料及其应用技术教育部重点实验室,湖南湘潭,411105
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强人峰, 肖思国, 阳效良, 等. Fe³⁺、Ce³⁺共掺杂γ-LiAlO₂的发光性质[J]. 发光学报, 2009,30(1):7-11.

QIANG Ren-feng, XIAO Si-guo, YANG Xiao-liang, et al. Luminescence Properties of Fe³⁺ and Ce³⁺ Co-doped γ-LiAlO₂[J]. Chinese Journal of Luminescence, 2009,30(1):7-11.
强人峰, 肖思国, 阳效良, 等. Fe³⁺、Ce³⁺共掺杂γ-LiAlO₂的发光性质[J]. 发光学报, 2009,30(1):7-11. DOI：

QIANG Ren-feng, XIAO Si-guo, YANG Xiao-liang, et al. Luminescence Properties of Fe³⁺ and Ce³⁺ Co-doped γ-LiAlO₂[J]. Chinese Journal of Luminescence, 2009,30(1):7-11. DOI：

摘要

采用不同于传统固相反应法的制备方法合成了Fe,Ce 共掺杂γ-LiAlO,2,。通过XRD和 SEM分析表明,采用这种方法能够成功获得尺寸小于10 μm的四方相结构γ-LiAlO,2,荧光粉。从γ-LiAlO,2, ∶ Fe,Ce 的激发和发射光谱可以看出,通过引入少量的铈离子,我们首先发现了铈离子掺杂对样品的发光效率有明显的影响。并且随着铈离子浓度的增加,其发光效率也出现规律性的变化,而且发射光谱在Ce离子摩尔分数达到1.5%的情况下发光效率最强,当Ce离子摩尔分数达到3％时,发光效率明显下降。这种高效的荧光粉作为转光剂应用于人工植物照明和农用转光膜具有积极的意义。

Abstract

Fe,3+, Ce,3+, co-doped LiAlO,2, samples were successfully prepared by solid-state reaction method. The XRD and the SEM results showed that tetragonal γ-LiAlO,2, with diameter less than 10 μm was obtained. It was found firstly that the luminescence intensity of γ-LiAlO,2, ∶ Fe,3+, is enhanced greatly by introducing a small amount of Ce,3+, ions. The Ce,3+, plays a role as sensitizer in host lattice, resulting in the enhancement of deep red emission of Fe,3+, ions. The improved phosphor might be widely applied to agricultural film and fluorescent lamps relating to plant growth.

关键词

荧光体发光效率共掺杂

Keywords

phosphorluminescenceefficiencyco-doped

references

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