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Title: Thermally stimulated conductivity and evaluation of some parameters of CaS:Pr phosphors
Authors: Dubey, R. N.
Awasthi, O N
Singh, V
Tiwari, M
Issue Date: Jan-2002
Publisher: NISCAIR-CSIR, India
Abstract: Thermally stimulated conductivity (TSC) of CaS:Pr microcrystalline phosphors studied in the temperature range of 300-330 K. One TSC was observed in the range 311-318 K. Trap depths relaxation times, attempts to escape frequency and initially filled traps are evaluated using Bucci-Fischi [Bucci C, Fischi R and Guide G, Phys Rev, 148(1956)816] and Cowell -Woods methods [Cowell T A T and Woods J, Brit J Appl Phys, 18(1967)1045]. An attempt is made to explain initially filled trap density using Ozawa model [Ozawa L-J, Elec Chem Soc, 120, 140 (1981)] of luminescent center.
Page(s): 54-58
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.40(01) [January 2002]

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