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|Title: ||TSL, OSL and ESR studies ZnAl2O4 : Tb phosphor|
|Authors: ||MENON, S|
|Keywords: ||combustion synthesis|
|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|
|Appears in Collections:||Article|
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