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Title: Decay behaviour of CaS phosphors activated by Ce3+, Na+ and Cu+
Authors: Tiwari, Manoj
Singh, Vijay
Dhoble, S J
Awasthi, O N
Keywords: Phosophorescence decay;UV excitation;Trap depth
Issue Date: Nov-2003
Publisher: NISCAIR-CSIR, India
Abstract: The nature or phosphorescence decay or calcium sulphide phosphors activated by Ce3+, Na+, Cu+ has been Studied.The variation in the value or trap depth has been studied by UV excitation in phosphorescence decay. These result indicates that, the groups of traps studied have been associated directly with the activator (Ce3+, Na+, Cu+) in CaS by UV excitation. By peeling off procedure, as suggested by Bube [Phys Rev, 80 ( 1950) 655], three different trap depths have been obtained.
Page(s): 894-896
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.41(11) [November 2003]

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