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Luminescence and ESR studies of CaS : Dy phosphor

DSpace at IIT Bombay

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Title Luminescence and ESR studies of CaS : Dy phosphor
 
Creator SINGH, V
ZHU, JJ
RAO, TKG
TIWARI, M
PAN, HC
 
Subject electron spin resonance
calcium sulfide
thin-films
cathodoluminescence
parameters
eu
 
Description CaS phosphor activated with Dy ions is prepared by the solid-state diffusion method. The phosphor is characterized by x-ray powder diffraction, thermogravimetric analysis and photoluminescence. Defect centres formed in CaS:Dy are studied using the technique of electron spin resonance. The thermoluminescence glow curve shows peaks at around 117 degrees C and 345 degrees C. Irradiated CaS:Dy exhibits ESR lines due to defect centres. The thermal annealing behaviour of one of the defect centres appears to correlate with the TL peaks at 117 degrees C and 345 degrees C. This centre is characterized by an isotropic g-value of 2.0035 and is assigned to an F+- centre.
 
Publisher CHINESE PHYSICAL SOC
 
Date 2011-07-20T10:13:29Z
2011-12-26T12:51:25Z
2011-12-27T05:36:10Z
2011-07-20T10:13:29Z
2011-12-26T12:51:25Z
2011-12-27T05:36:10Z
2005
 
Type Article
 
Identifier CHINESE PHYSICS LETTERS, 22(12), 3182-3185
0256-307X
http://dx.doi.org/10.1088/0256-307X/22/12/056
http://dspace.library.iitb.ac.in/xmlui/handle/10054/5437
http://hdl.handle.net/10054/5437
 
Language en