| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5403186 | Journal of Luminescence | 2007 | 6 Pages |
Abstract
Different samples of calcium sulphide (CaS):CaS(Sm) and CaS(Sm,Ce) phosphors have been prepared. To study the phosphorescence decay systematically, the samples were excited to a saturation using 259Â nm line of xenon lamp and phosphorescence emission was monitored for a wavelength 569Â nm of samarium. The trap depth has been evaluated by analyzing the decay curves. The observed decay could be explained satisfactorily by assuming a superposition scheme. The thermoluminescence properties of the doped CaS phosphors are also investigated in detail by computerized deconvolution technique of the glow curves obtained by UV irradiation.
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Authors
P.I. Paulose, James Joseph, M.K. Rudra Warrier, Gijo Jose, N.V. Unnikrishnan,