X-ray excited fluorescence and phosphorescence of CaSO4: Sm phosphors |
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Authors: | S G Sabnis S H Pawar |
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Institution: | (1) Department of Physics, Shivaji University, 416 004 Kolhapur |
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Abstract: | Calcium sulphate phosphors activated with samarium as an impurity with various percentage composition have been prepared and
their fluorescence rise and phosphorescence decay behaviours have been studied. The growth curve is investigated to study
the density of traps. The process of filling of traps during x-ray excitation is revealed. The decay curves are analysed to
study the distribution of traps, the nature of decay and kinetics involved in the luminescence process. The concentration
dependence of fluorescence emission of the phosphors is also discussed. |
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Keywords: | Fluorescence phosphorescence traps calcium sulphate phosphors samarium |
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