自蔓延高温合成掺杂SrAl<SUB>2</SUB>O<SUB>4</SUB>稀土长余辉发光粉的研究

doi:10.3964/j.issn.1000-0593(2011)06-1467-05

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摘要：在600 ℃下用自蔓延高温法制备了SrAl₂O₄∶Eu²⁺_{0.012 5}, RE³⁺_{0.012 5} (RE³⁺=Ce³⁺, Pr³⁺, Nd³⁺, Tb³⁺, Dy³⁺), SrAl₂O₄∶Eu²⁺_{0.012 5}, M_{0.012 5}(M=Li⁺, Be²⁺, Cd²⁺, Mn²⁺, Cu²⁺, Ag⁺, Zn²⁺, Pb²⁺), SrAl₂O₄∶Eu²⁺_{0.012 5}, Dy³⁺_{0.012 5}, M_{0.012 5}(M=Mn²⁺, Cu²⁺, Ag⁺, Zn²⁺)及SrAl₂O₄∶Eu²⁺_{0.012 5}, Dy³⁺_{0.012 5}，RE³⁺_{0. 012 5} (RE³⁺=Ce³⁺, Pr³⁺, Nd³⁺, Tb³⁺)四个系列21种掺杂的铝酸锶(SrAl₂O₄)稀土长余辉发光粉。反应得到的产物疏松多孔，有很强发射峰位于514 nm附近，激发光谱为290～360 nm 的宽带激发峰，Dy³⁺对余辉时间影响最明显，Tb³⁺对发光强度影响最大，组成为SrAl₂O₄∶Eu²⁺_{0.012 5}, Dy³⁺_{0.012 5}的发光粉的发光强度及余辉时间较好，掺入锌离子后形成SrAl₂O₄∶Eu²⁺_{0.012 5}, Dy³⁺_{0.012 5}, Zn²⁺_{0.012 5}可显著提高初始余辉亮度。

关键词：长余辉;铝酸锶;稀土;自蔓延高温合成

Abstract：Twenty one doped SrAl₂O₄ long after-glowed phosphors with 4 series were synthesized by self-propagating high-temperature synthesis method (SHS) with urea-nitrate solution which served as media at 600 ℃. They are SrAl₂O₄∶Eu²⁺_{0.012 5}, RE³⁺_{0.012 5}(RE³⁺=Ce³⁺, Pr3+, Nd³⁺, Tb³⁺, Dy³⁺), SrAl₂O₄∶Eu²⁺_{0.012 5}, M_{0.012 5}(M=Li⁺, Be²⁺, Cd²⁺, Mn²⁺, Cu²⁺, Ag⁺, Zn²⁺, Pb²⁺), SrAl₂O₄∶Eu²⁺_{0.012 5}, Dy³⁺_{0.012 5}, M_{0.012 5}(M=Mn²⁺, Cu²⁺, Ag⁺, Zn²⁺), and SrAl₂O₄∶Eu²⁺_{0.012 5}, Dy³⁺_{0.012 5}，RE3+_{0.012 5}(RE³⁺=Ce³⁺, Pr³⁺, Nd³⁺, Tb³⁺), of which luminescence and after-glowing features were tested. The morphology of all these samples presents a state of porosity and laxity. The samples show an intense emission peak at 514 nm and broad peaks of the excitation spectra at 290～360 nm, Tb³⁺ and Dy³⁺ had most effects on luminance and after-glowed time respectively. The SrAl₂O₄∶Eu²⁺_{0.012 5}, Dy³⁺_{0.012 5} had good luminance and proper after-glowed time as well.

Key words：Long afterglow;SrAl₂O₄;Rare earth complex;Self-propagating high-temperature synthesis (SHS)

收稿日期: 2010-04-12 修订日期: 2010-07-11

中图分类号:	O482.3
	O614.3

通讯作者: 赵永亮 E-mail: hxzhaoyl@163.com

引用本文:

栗源，赵永亮^*，刘永刚，魏晓燕，任越. 自蔓延高温合成掺杂SrAl₂O₄稀土长余辉发光粉的研究[J]. 光谱学与光谱分析, 2011, 31(06): 1467-1471.
LI Yuan, ZHAO Yong-liang^*, LIU Yong-gang，WEI Xiao-yan，REN Yue. Study on Self-Propagating Synthesis of the Doped SrAl₂O₄ Rare Earth Long Afterglow Phosphors. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(06): 1467-1471.

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