Thermoluminescence properties of Eu-doped and Eu/Dy-codoped Sr2Al2SiO7 phosphors

被引：6

作者：

Jadhaw, Akhilesh ^{[1
]}

Sonwane, Vivek D. ^{[2
]}

Gour, Anubha S. ^{[3
]}

Jha, Piyush ^{[4
]}

机构：

[1] Govt J Yoganandam Chhattisgarh Coll, Dept Phys, Raipur, Madhya Pradesh, India

[2] Disha Inst Management & Technol, Dept Appl Phys, Raipur, Madhya Pradesh, India

[3] Pt Ravishankar Shukla Univ, Sch Studies Phys & Astrophys, Raipur, Madhya Pradesh, India

[4] Raipur Inst Technol, Dept Appl Phys, Raipur, Madhya Pradesh, India

来源：

LUMINESCENCE | 2017年 / 32卷 / 07期

关键词：

activation energy; phosphors; Sr2Al2SiO7:Eu; Dy; thermoluminescence;

D O I：

10.1002/bio.3331

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

We report the thermoluminescence properties of Sr1.96Al2SiO7:Eu-0.04 and Sr1.92Al2SiO7:Eu0.04Dy0.04 phosphors. These phosphors were prepared by a high-temperature solid-state reaction method. The prepared phosphors were characterized by X-ray diffraction. A 254nm source was used for ultraviolet (UV) irradiation and a Co-60 source was used for -irradiation. The effect of heating rate and UV-exposure were examined. The thermoluminescence temperature shifts to higher values with increasing heating rate and thermoluminescence intensity increases with increasing UV exposure time. The trapping parameters such as activation energy (E), order of kinetics and frequency factor (s) were calculated by peak shape method. The effect of - and UV-irradiation on thermoluminescence studies was also examined.

引用

页码：1349 / 1353

页数：5

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