Thermoluminescence properties of MgO:Al3+,Li+- prepared by microwave-assisted solution combustion method

被引：6

作者：

Mofokeng, S. J. ^{[1
]}

Noto, L. L. ^{[1
]}

Mlotswa, D., V ^{[1
]}

Orante-Barron, V. R. ^{[2
]}

Dhlamini, M. S. ^{[1
]}

机构：

[1] Univ South Africa, Dept Phys, CSET, ZA-1710 Johannesburg, South Africa

[2] Univ Sonora, Dept Invest Polimeros & Mat, Apartado Postal 130, Hermosillo 83000, Sonora, Mexico

来源：

PHYSICA B-CONDENSED MATTER | 2020年 / 582卷

基金：

新加坡国家研究基金会;

关键词：

Thermoluminescence; MgO:Al3+; Li+; Solution combustion synthesis; Activation energy; DOPED MGO; DOSIMETRIC PROPERTIES; INITIAL RISE; HEATING RATE; GLOW PEAK; PHOTOLUMINESCENCE; LI; NANOCRYSTALS; LUMINESCENCE; PARAMETERS;

D O I：

10.1016/j.physb.2020.412008

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this work, the thermoluminescence (TL) properties of MgO co-doped with Al3+ and Li+ cations, prepared by microwave-assisted solution combustion synthesis, using glycine as a fuel, are presented for the very first time. The X-ray diffractometer pattern confirmed MgO:Al3+,Li+ cubic phase formation and showed minor presence of a secondary phase associated with Al3+ cations. The energy band gap of the sample was approximated to 3.52 eV using the Kubelka-Munk relation. TL spectroscopy equipped with a beta source for sample irradiation was used to investigate electron trapping centres of MgO:Al3+,Li+. The dose-response measurements confirmed the general order kinetics. The depth of these electron trapping centres was approximated to be from 0.70 to 0.81 eV.

引用

页数：8

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