Kinetic Parameters analysis of GdAlO$_3$ based on thermoluminescent phenomenon
{We herein report on the calculation of thermoluminescence (TL) kinetic parameters determined from the TL emission of synthetic GdAlO3 (GAO) phosphors prepared by the co-precipitation method. The sample, characterized by means of X-ray diffraction with an orthorhombic phase structure (space group Pn...
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Zusammenfassung: | {We herein report on the calculation of thermoluminescence (TL) kinetic
parameters determined from the TL emission of synthetic GdAlO3 (GAO) phosphors
prepared by the co-precipitation method. The sample, characterized by means of
X-ray diffraction with an orthorhombic phase structure (space group Pnma (62),
shows complex glow curves consisting of at least four groups of components
peaked at 100, 140, 240, and 290 {\deg}C where the two lower overlapped
temperature peaks are difficult to identify using the $T_M-T_{stop}$. The
coexistence of a continuum in the trap distribution (linked to the lower
temperature peaks) and a discrete trap system (associated with the components
at temperatures higher than 200 {\deg}C) can be distinguished. The estimation
of the TL kinetic parameters is performed using GlowFit, TLAnal, the
spreadsheet Origin, Computing Glow Curve Deconvolution (CGCD), and various
heating rate (VHR) methods. However, only CGCD appears as the suitable
technique for such purpose since it provides information on the TL physical
process supported by mathematical models based on a linear combination of
functions related to the First Order Kinetic approach. |
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DOI: | 10.48550/arxiv.2406.01312 |