Radiation effect on the luminescence of LiYF4:Er3+

被引：0

作者：

Deshpande, S.P. ^{[1
]}

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

Pokale, W.K. ^{[1
]}

Deshmukh, B.T. ^{[1
]}

Pode, R.B. ^{[1
]}

Gundurao, T.K. ^{[1
]}

机构：

[1] Nagpur Univ, Nagpur, India

来源：

Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms | 1998年 / 134卷 / 3-4期

关键词：

Annealing - Color centers - Crystal lattices - Electron spin resonance spectroscopy - Erbium - Ion implantation - Ionization of solids - Lithium compounds - Photoluminescence - Radiation damage - Thermoluminescence;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Luminescence and also the effects of ionizing radiation on luminescence have been investigated in LiYF4:Er. The deflects created by ionizing radiation are studied by means of Thermally Stimulated Luminescence (TSL) and Electron Spin Resonance (ESR). TSL studies indicate a prominent glow peak at 386-412 K, whose position is found to depend on the radiation dose. Two defect centres, tentatively assigned to F-centres, are observed at room temperature. Step annealing measurements suggest a connection between these centres and the TSL flow peak. Photoluminescence studies indicate considerable reduction in emission intensity which appears to arise from the distortion of the lattice around the Er3+ ion caused by the defect centres. An explanation of the observations is suggested on the basis of impurity ion-defect centre formation.

引用

页码：385 / 392