TSL, OSL and ESR studies ZnAl2O4 : Tb phosphor

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
Appears in Collections:	Article

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