Abstract:
Thermoluminescence(TL) is a luminescence phenomenon of an insulator or semiconductor
which can be observed when the solid is thermally stimulated. The glow curve
deconvolution(GCD) is mainly used to find the individual glow peaks of a composite
TL Glow curve and further to evaluate the trapping parameters. The purpose of this research
was to analyze glowcurve of calcium magnesium silicate nanophosphor and deconvolute
the curve in to its individual peaks using Origin software and this was based
on the concept of one trap-one recombination center(OTOR) model. Four peaks were
deconvoluted and we determined activation energy(E) and frequency factor(s) for each
peak using peak shape method. With the determined values of activation energy(E) and
frequency factor(s) the graph of concentration of electron(n(T)) and TL intensity versus
temperature was plotted inMathematica. And we observed that the value of maximum
temperature experimentally and calculated were close to each other for these peaks.
Also, shift of TL intensity of these peaks were observed.
