ELECTRON-SPIN-RESONANCE, THERMOLUMINESCENCE AND FLUORESCENCE STUDIES ON BASO4-EU AND BASO4-EU, P THERMOLUMINESCENT PHOSPHORS

被引：27
|
作者：
RAO, TKG
SHINDE, SS
BHATT, BC
SRIVASTAVA, JK
NAMBI, KSV
机构：
[1] BHABHA ATOM RES CTR,DIV RADIOL PHYS,BOMBAY 400085,MAHARASHTRA,INDIA
[2] BHABHA ATOM RES CTR,DIV ENVIRONM ASSESSMENT,BOMBAY 400085,MAHARASHTRA,INDIA
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 1995年 / 7卷 / 32期
关键词：
D O I：
10.1088/0953-8984/7/32/022
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The paramagnetic radicals formed in the TL phosphors BaSO4:Eu and BaSO4:Eu, P have been studied using the technique of ESR. Two radicals, assigned to SO2-, were observed at room temperature. One of them exhibits a hyperfine interaction with a nearby cation. Step annealing measurements suggest a connection between these radicals and the TL glow peaks at 170 and 215 degrees C. Co-doping BaSO4:Eu with phosphorus enhanced its TL efficiency. ESR and fluorescence emission measurements indicate that the enhancement results from an increased intake of divalent europium into the lattice.
引用
收藏
页码：6569 / 6581
页数：13
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