Thermoluminescence, optically stimulated luminescence and ESR studies on LiAl5O8:Tb

Thermoluminescence, optically stimulated luminescence and ESR studies on LiAl5O8:Tb

The LiAl5O8:Tb phosphor has been prepared by solution combustion synthesis. LiAl5O8:Tb shows two TL peaks at 160 and 330 deg C, respectively. Continuous Wave OSL (CW-OSL) of LiAl5O8:Tb phosphor is recorded. ESR studies have been carried out to identify defect centres responsible for TL peaks observe...

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Veröffentlicht in:Indian journal of pure & applied physics 2009-06, Vol.47 (6), p.426-428
Hauptverfasser: Dhabekar, Bhushan, Alagu Raja, E, Gundu Rao, T K, Kher, R K, Bhatt, B C
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container_title Indian journal of pure & applied physics
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creator Dhabekar, Bhushan
Alagu Raja, E
Gundu Rao, T K
Kher, R K
Bhatt, B C
description The LiAl5O8:Tb phosphor has been prepared by solution combustion synthesis. LiAl5O8:Tb shows two TL peaks at 160 and 330 deg C, respectively. Continuous Wave OSL (CW-OSL) of LiAl5O8:Tb phosphor is recorded. ESR studies have been carried out to identify defect centres responsible for TL peaks observed in LiAl5O8:Tb. Room temperature ESR spectra of irradiated LiAl5O8:Tb phosphor exhibit two distinct centres. The first ESR line is assigned to a V-centre. The second ESR line is assigned to F(+) centre. Both the ESR lines appear to correlate with the 160 deg C TL peak of LiAl5O8:Tb phosphor.
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title Thermoluminescence, optically stimulated luminescence and ESR studies on LiAl5O8:Tb
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