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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/7119

Title: TSL, OSL and ESR studies ZnAl2O4 : Tb phosphor
Authors: MENON, S
DHABEKAR, B
RAJA, EA
MORE, SP
RAO, TKG
KHER, RK
Keywords: combustion synthesis
zinc aluminate
fine-particle
Issue Date: 2008
Publisher: ELSEVIER SCIENCE BV
Citation: JOURNAL OF LUMINESCENCE, 128(10), 1673-1678
Abstract: ZnAl2O4:Tb phosphor was prepared by combustion synthesis. ZnAl2O4:Tb exhibits three thermally stimulated luminescence (TSL) peaks around 150, 275 and 350 degrees C. ZnAl2O4:Tb exhibits optically stimulated luminescence (OSL) when stimulated with 470 nm light. Electron spin resonance (ESR) studies were carried out to identify defect centres responsible for TSL peaks observed in ZnAl2O4:Tb. Two defect centres are identified in irradiated ZnAl2O4:Tb phosphor and these centres are assigned to V and F+ centres. V centre appears to correlate with the 150 degrees C TSL peak, while F+ centre could not be associated with the observed TSL peaks. (C) 2008
URI: http://dx.doi.org/10.1016/j.jlumin.2008.03.016
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7119
http://hdl.handle.net/10054/7119
ISSN: 0022-2313
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