长余辉夜光材料Sr4Al14O25:(Eu,Dy)的制备及性能优化

doi:10.3724/SP.J.1077.2012.12337

无机材料学报 ›› 2012, Vol. 27 ›› Issue (12): 1341-1344.DOI: 10.3724/SP.J.1077.2012.12337 CSTR: 32189.14.SP.J.1077.2012.12337

• 研究快报 • 上一篇

长余辉夜光材料Sr₄Al₁₄O₂₅:(Eu,Dy)的制备及性能优化

邱涛¹, 季振国^1,2, 孔哲¹, 李红霞¹, 张尔攀¹

(1. 杭州电子科技大学电子材料与器件实验室, 杭州310018; 2. 浙江大学硅材料国家重点实验室, 杭州310027)

收稿日期:2012-05-24 修回日期:2012-09-01 出版日期:2012-12-20 网络出版日期:2012-11-19
作者简介:QIU Tao(1986–), male, candidate of master. E-mail: qiutao2457258@126.com
基金资助:
National Natural Science Foundation of China (61072015); Natural Science Foundation of Zhejiang Province (Z4110503, Q12E020007)

Preparation and Optimization of Long Persistent Luminescent Sr₄Al₁₄O₂₅:(Eu,Dy) Phosphor Materials

QIU Tao¹, JI Zhen-Guo^1,2, KONG Zhe¹, LI Hong-Xia¹, ZHANG Er-Pan¹

(1. Laboratory of Electronic Materials and Devices, Hangzhou Dianzi University, Hangzhou 310018, China; 2. State key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China)

Received:2012-05-24 Revised:2012-09-01 Published:2012-12-20 Online:2012-11-19
About author:QIU Tao(1986–), male, candidate of master. E-mail: qiutao2457258@126.com
Supported by:
National Natural Science Foundation of China (61072015); Natural Science Foundation of Zhejiang Province (Z4110503, Q12E020007)

摘要/Abstract

摘要： 利用固相反应法制备了Sr₄Al₁₄O₂₅:(Eu²⁺, Dy³⁺)长余辉夜光材料, 并研究了H₃BO₃含量、固相反应温度和Eu含量对Sr₄Al₁₄O₂₅:(Eu²⁺, Dy³⁺)长余辉夜光材料性能的影响. 实验结果表明, H₃BO₃含量对蓝绿发射的Sr₄Al₁₄O₂₅相的形成至关重要. 在固相反应温度为1400℃, H3BO3含量为10at%, Eu/Al原子比为0.03的优化条件下, 获得了发射波长为 490 nm, 余辉时间长达24 h以上的Sr₄Al₁₄O₂₅夜光粉. 发光强度与Eu含量的关系证明, Sr₄Al₁₄O₂₅相的蓝绿发射过程主要受电子从深陷阱到Eu²⁺能级的转移速度的控制.

关键词: Sr₄Al₁₄O₂₅, 铝酸盐, 长余辉, 夜光粉

Abstract: Sr₄Al₁₄O₂₅:(Eu,Dy) phosphor materials were prepared by solid state reaction. The dependence of long persistent luminescence from Sr₄Al₁₄O₂₅:(Eu²⁺, Dy³⁺) on the amounts of H₃BO₃, the solid state reaction temperature, and the contents of Eu were studied. It was found that the addition of H₃BO₃as the flux agent was critical for the formation of the blue-green emitting Sr₄Al₁₄O₂₅ phase. Sr₄Al₁₄O₂₅ phosphors with persistent luminescence of 490 nm and afterglow time more than 24 h was obtained for the sample prepared at 1400℃ with the doping amounts of H₃BO₃ of 10at% and Eu/Al atomic ratio of 0.03, respectively. Furthermore, the dependence of persistent luminescence intensity on Eu content indicates that the persistent luminescence process is mainly controlled by the electron transition rate from deep traps to Eu²⁺ levels.

Key words: Sr₄Al₁₄O₂₅, aluminates, persistent luminescent, phosphors

中图分类号:

TQ174

邱涛, 季振国, 孔哲, 李红霞, 张尔攀. 长余辉夜光材料Sr₄Al₁₄O₂₅:(Eu,Dy)的制备及性能优化[J]. 无机材料学报, 2012, 27(12): 1341-1344.

QIU Tao, JI Zhen-Guo, KONG Zhe, LI Hong-Xia, ZHANG Er-Pan. Preparation and Optimization of Long Persistent Luminescent Sr₄Al₁₄O₂₅:(Eu,Dy) Phosphor Materials[J]. Journal of Inorganic Materials, 2012, 27(12): 1341-1344.

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长余辉夜光材料Sr₄Al₁₄O₂₅:(Eu,Dy)的制备及性能优化

Preparation and Optimization of Long Persistent Luminescent Sr₄Al₁₄O₂₅:(Eu,Dy) Phosphor Materials

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