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无机材料学报

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2009 , Vol. 24 >Issue 1: 53 - 56

DOI: https://doi.org/10.3724/SP.J.1077.2009.00053

研究论文

锶铝比例对铝酸锶长余辉发光材料性能的影响

  • 栾 林 ,
  • 郭崇峰 ,
  • 黄德修
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  • 华中科技大学 武汉光电国家实验室， 武汉 430074

收稿日期: 2008-04-21

  修回日期: 2008-06-02

  网络出版日期: 2009-01-20

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Effect of Al/Sr Ratio on Properties of Strontium Aluminate Long Lasting Phosphor

  • LUAN Lin ,
  • GUO Chong-Feng ,
  • HUANG De-Xiu
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  • Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China

Received date: 2008-04-21

  Revised date: 2008-06-02

  Online published: 2009-01-20

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摘要

系统研究了Eu2+、Dy3+共激活的铝酸锶长余辉发光材料的发光特性与Al/Sr比例的关系.采用高温固相法合成了Al/Sr从1.0到12.0的一系列样品，对其进行了XRD和荧光光谱测试，当Al/Sr＝2.0、3.5、10.0时，分别得到了SrAl2O4:Eu2+,Dy3+、Sr4Al14O25:Eu2+,Dy3+、SrAl12O19:Eu2+,Dy3+的纯相，其它比例时得到的是不同铝酸锶化合物的混合物，样品的相组成呈明显的过渡性变化，导致样品的发光颜色随Al/Sr比例的增大，从蓝绿光向短波长方向移动，最终到达紫光.

关键词： 铝酸盐; 长余辉; 铝锶比

本文引用格式

栾 林 , 郭崇峰 , 黄德修 . 锶铝比例对铝酸锶长余辉发光材料性能的影响[J]. 无机材料学报, 2009 , 24(1) : 53 -56 . DOI: 10.3724/SP.J.1077.2009.00053

Abstract

The relation between properties of strontium aluminate phosphor and Al/Sr ratio was investigated. A series of strontium aluminate phosphors with different Al/Sr ratios from 1.0 to 12.0 were synthesized by solid-state method. The samples were characterized by X-ray diffraction and photoluminescence spectra. The results reveal that single phases of SrAl2O4:Eu2+,Dy3+, Sr4Al14O25:Eu2+,Dy3+ and SrAl12O19:Eu2+,Dy3+ are obtained with Al/Sr ratios of 2.0, 3.5 and 10.0 respectively. When Al/Sr selects other values, the final products are mixture. Moreover, the emission spectra of the samples shift to blue-ultraviolet short wavelength from yellow-green long wave with the increase of Al/Sr ratios, which result from change of products’ composition.

Key words： aluminate; long afterglow; Al/Sr

参考文献

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