Luminescent studies of impurity doped SrS phosphors

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Title:	Luminescent studies of impurity doped SrS phosphors
Authors:	SINGH, V TIWARI, M RAO, TKG DHOBLE, SJ
Keywords:	calcium sulfide energy-transfer glass praseodymium ions
Issue Date:	2005
Publisher:	INDIAN ACADEMY SCIENCES
Citation:	BULLETIN OF MATERIALS SCIENCE, 28(1), 31-34
Abstract:	SrS phosphors activated with Ce and Dy ions were prepared by solid-state diffusion method. Photoluminescent study was carried out on SrS : Ce, SrS : Dy and SrS : Dy, Ce. Thermoluminescence and electron spin resonance studies were also carried out on SrS : Dy phosphor. The thermoluminescence glow curve shows a peak at around 142degreesC. Irradiated SrS : Dy exhibits an ESR line due to a defect centre. Thermal annealing behaviour indicates that this centre correlates with the TL peak at 142degreesC. The centre is characterized by an isotropic g-value of 2.0039 and is assigned to a F+ centre.
URI:	http://dx.doi.org/10.1007/BF02711168 http://dspace.library.iitb.ac.in/xmlui/handle/10054/8662 http://hdl.handle.net/10054/8662
ISSN:	0250-4707
Appears in Collections:	Article

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