Glass forming regions and concentration-dependent luminescence properties of Tb3+-activated tellurium-lutetium-tungsten glasses
来源期刊：JOURNAL OF RARE EARTHS2021年第2期
论文作者：Xin-Yuan Sun Min-Jun Zhou Chang-Bin Deng Qing-Mei Yang Jiuping Zhong
摘 要：The glass-forming regions of tellurium-gadolinium-tungsten ternary system prepared at 1000℃ for 60 min were firstly determined.To improve density,the full replacement of lutetium for gadolinium to form Tb3+-activated tellurium-lutetium-tungsten glasses with the composition of 64 TeO2-20 WO3-（16-y）Lu2 O3-yTb2 O3 were designed for scintillation application.The concentration-dependent optical properties of Tb3+-activated tellurium-lutetium-tungsten glasses were fully investigated by transmittance,excitation and emission spectra,together with the luminescence decay curves.The energy transfer mechanism was discussed according to Huang’s rule.The optimized 4 mol% Tb2 O3 activated tellurium-lutetium-tungsten glasses with the density of 6.49 g/cm3 and the lifetime of 0.551 ms are developing to be suitable for the potential detection of slow events in the future work.
Xin-Yuan Sun1，Min-Jun Zhou1，Chang-Bin Deng1，Qing-Mei Yang2，Jiuping Zhong3
1. Department of Physics,Jinggangshan University2. Library of Jinggangshan University3. State Key Laboratory of Optoelectroic Materials and Technologies,School of Materials,Sun Yat-sen University
摘 要：The glass-forming regions of tellurium-gadolinium-tungsten ternary system prepared at 1000℃ for 60 min were firstly determined.To improve density,the full replacement of lutetium for gadolinium to form Tb3+-activated tellurium-lutetium-tungsten glasses with the composition of 64 TeO2-20 WO3-（16-y）Lu2 O3-yTb2 O3 were designed for scintillation application.The concentration-dependent optical properties of Tb3+-activated tellurium-lutetium-tungsten glasses were fully investigated by transmittance,excitation and emission spectra,together with the luminescence decay curves.The energy transfer mechanism was discussed according to Huang’s rule.The optimized 4 mol% Tb2 O3 activated tellurium-lutetium-tungsten glasses with the density of 6.49 g/cm3 and the lifetime of 0.551 ms are developing to be suitable for the potential detection of slow events in the future work.
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