Abstract
This paper reports the synthesis, characterization
and thermoluminescence properties of pure
${GdAlO}_{3}$
nanophosphors.
The samples were prepared by solid-state reaction, a synthesis technique
which is suitable for time large-scale production with uniform size
for nano phosphors. The particle size of the prepared phosphor was
calculated by XRD technique. The functional group analysis was determined
by Fourier transform infrared (FTIR) spectroscopic techniques. The
surface morphology of prepared phosphor was determined by field emission
gun scanning electron microscopy (FEGSEM) technique. The good connectivity
with grains and the semi-sphere line structure was found by FEGSEM.
The prepared phosphor examined by thermoluminescence technique and
computerized deconvolution method used to obtain the deconvoluted
curve. For recording TL glow curve every time 0.5
mg phosphor was irradiated by a UV 254-nm source.
The effects of variable heating rate on thermoluminescence (TL) behavior
of
${GdAlO}_{3}$
were studied. The various heating rate (3
$^{\circ} {C} \cdot{s}
^{-1}$
to 6
$^{\circ} {C}\cdot {s} ^{-1}$
) shows shifting in TL glow peaks at higher temperature side with
different shape. For optimized heating rate TL response for different
UV exposure time were recorded and optimized it. Trapping parameters
are calculated for every recorded glow curve.
© 2015 IEEE
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