Enhanced long persistence of LiSr4(BO3)3:Eu2+ orange phosphors by co-doping with Dy3+

被引：20

作者：

Li, Gen ^{[1
]}

Wang, Yuhua ^{[1
]}

Zeng, Wei ^{[1
]}

Han, Shaochun ^{[1
]}

Chen, Wenbo ^{[1
]}

Li, Yanyari ^{[1
]}

Li, Hao ^{[1
]}

机构：

[1] Lanzhou Univ, Sch Phys Sci & Technol, Dept Mat Sci, Lanzhou 730000, Peoples R China

来源：

OPTICAL MATERIALS | 2014年 / 36卷 / 11期

基金：

美国国家科学基金会;

关键词：

LiSr4(BO3)(3); Afterglow; Thermoluminescence; Dy3+; LASTING PHOSPHORESCENCE; LUMINESCENCE; ALUMINATE; SR; LN;

D O I：

10.1016/j.optmat.2014.02.030

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel orange emitting long-lasting phosphor based on LiSr4(BO3)(3) host matrix was prepared by a solid-state reaction under a reductive atmosphere. Both diffuse reflectance spectra and photoluminescence emission spectra of the Eu2+-doped and Eu2+, Dy3+ co-doped samples revealed only the 5d-4f transitions of Eu2+. The broad emission band of Eu2+ appeared to be asymmetric, which illustrated only Eu2+ acted as the emission center in two different Sr sites. The duration of co-doped samples was prolonged drastically, compared with that of the Eu2+ single-doped samples. Investigation of thermoluminescence curves revealed that the incorporation of Dy3+ created more appropriate energy traps leading to the enhancement of afterglow. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：1808 / 1813

页数：6

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