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A Study on the Energy Transfer of YAlO3:Tbx3+ using Decay Curves  

Kim, Gwang Chul (Physics Department, School of Liberal Arts, KOREATECH)
Choi, Jin Soo (Agency for Defence Developm)
Publication Information
Journal of the Semiconductor & Display Technology / v.14, no.1, 2015 , pp. 13-17 More about this Journal
Abstract
$YAlO_3:Tb{_x}^{3+}$ has been synthesized by a combustion process and the concentration x of Tb was varied from 0.001 and 0.05 mol% per mole of YAlO3. The energy transfer of $^5D_3{\rightarrow}^7F_6$(385nm) and $^5D_4{\rightarrow}^7F_5$(544nm) transitions on the $YAlO_3:Tb{_x}^{3+}$(x =0.001, 0.05) have been investigated by using decay curves. The energy transfer mechanism was explained by Inokuti and Hirayama model. The results of calculation and fitting showed that values of n are 6.11(x=0.01) and 6.13(x=0.005). These indicate that the energy transfer mechanism between $Tb^{3+}$ ions is dipole-dipole interaction.
Keywords
Decay curve; Energy transfer mechanism; Dipole; Interaction;
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