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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/10229

Title: ESR and thermoluminescence studies of bismuth doped calcium sulphide phosphors
Authors: TIWARI, M
SINGH, V
RAO, TKG
DHOBLE, SJ
Keywords: cas
Issue Date: 2004
Publisher: NATL INST SCIENCE COMMUNICATION
Citation: INDIAN JOURNAL OF PURE & APPLIED PHYSICS, 42(5), 323-325
Abstract: Thermally simulated luminescence (TSL) and electron spin resonance (ESR) studies were carried out on bismuth doped CaS phosphor synthesized by using solid-state reaction technique. The defect centers formed in CaS:Bi were studied using the technique of electron spin resonance. The thermaluminescence glow curve shows two peaks at about 400 and 505 K. Irradiated CaS:Bi exhibits ESR lines due to defect centers. Thermal annealing behaviour of the phosphor indicates that one of the defect centres correlates with the TSL peaks at 400 and 505 K. The center is characterized by an isotropic g-value of 2.0034 and is assigned to a F+ center.
URI: http://dspace.library.iitb.ac.in/xmlui/handle/10054/10229
http://hdl.handle.net/10054/10229
ISSN: 0019-5596
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