Luminescence Properties of Fe3+ and Ce3+ Co-doped γ-LiAlO2

QIANG Ren-feng; XIAO Si-guo; YANG Xiao-liang; DING Jian-wen; ZHU Chu-qiao

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Luminescence Properties of Fe³⁺ and Ce³⁺ Co-doped γ-LiAlO₂

paper | 更新时间：2020-08-12

- Luminescence Properties of Fe³⁺ and Ce³⁺ Co-doped γ-LiAlO₂
- Chinese Journal of Luminescence Vol. 30, Issue 1, Pages: 7-11(2009)
- 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
- 作者简介：
- 基金信息：
- DOI：
  CLC： O482.31
- Received：16 April 2008，
  
  Revised：02 January 1900，
  
  Published Online：20 February 2009，
  
  Published：20 February 2009
- 稿件说明：
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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：

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

。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

荧光粉。从γ-LiAlO

∶ 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

co-doped LiAlO

samples were successfully prepared by solid-state reaction method. The XRD and the SEM results showed that tetragonal γ-LiAlO

with diameter less than 10 μm was obtained. It was found firstly that the luminescence intensity of γ-LiAlO

∶ Fe

is enhanced greatly by introducing a small amount of Ce

ions. The Ce

plays a role as sensitizer in host lattice

resulting in the enhancement of deep red emission of Fe

ions. The improved phosphor might be widely applied to agricultural film and fluorescent lamps relating to plant growth.

关键词

Keywords

references

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