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Synthesis and characterization of Ce-doped SrS phosphors

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Title Synthesis and characterization of Ce-doped SrS phosphors
 
Creator SINGH, V
RAO, TKG
MIAO, JJ
ZHU, JJ
 
Subject alkaline-earth sulfides
calcium sulfide
cas
cathodoluminescence
luminescence
displays
defects
spectra
mgs
luminescence
doping
phosphors
field-condensed matter
material physics
 
Description SrS:Ce phosphor was prepared by a solid-state diffusion method. Powder X-ray diffraction, transmission electron microscopy, and thermogravimetric analysis were used to characterize the as-prepared product, and the optical properties were studied by photoluminescence spectra. In addition, thermoluminescence and electron spin resonance studies have been carried out on SrS:Ce phosphor. The TL glow curve is broad and indicates two dominant peaks at 137 and 275 degrees C, with an additional peak, not clearly resolved, appearing as shoulder at similar to 362 degrees C. Two defect centers are observed at room temperature. One of them is characterized by an isotropic g-value of 2.0039 and is assigned to an F+ center. Step annealing measurements indicate a possible association between the F+ center and the 137 degrees C TL peak.
 
Publisher TAYLOR & FRANCIS LTD
 
Date 2011-08-31T06:15:55Z
2011-12-26T12:59:24Z
2011-12-27T05:51:25Z
2011-08-31T06:15:55Z
2011-12-26T12:59:24Z
2011-12-27T05:51:25Z
2005
 
Type Article
 
Identifier RADIATION EFFECTS AND DEFECTS IN SOLIDS, 160(7), 265-274
1042-0150
http://dx.doi.org/10.1080/10420150500375534
http://dspace.library.iitb.ac.in/xmlui/handle/10054/12611
http://hdl.handle.net/10054/12611
 
Language en