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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/9095

Title: ELECTRON-SPIN-RESONANCE, THERMOLUMINESCENCE AND FLUORESCENCE STUDIES ON BASO4-EU AND BASO4-EU, P THERMOLUMINESCENT PHOSPHORS
Authors: RAO, TKG
SHINDE, SS
BHATT, BC
SRIVASTAVA, JK
NAMBI, KSV
Keywords: tld phosphors
luminescence
caso4-dy
charge
spectroscopy
excitation
crystals
Issue Date: 1995
Publisher: IOP PUBLISHING LTD
Citation: JOURNAL OF PHYSICS-CONDENSED MATTER, 7(32), 6569-6581
Abstract: 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.
URI: http://dx.doi.org/10.1088/0953-8984/7/32/022
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9095
http://hdl.handle.net/10054/9095
ISSN: 0953-8984
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