Glass forming regions and concentration-dependent luminescence properties of Tb3+-activated tellurium-lutetium-tungsten glasses

• 作者: Xin-Yuan Sun Min-Jun Zhou Chang-Bin Deng Qing-Mei Yang Jiuping Zhong
• 来源期刊: 稀土学报（英文版）
• 年，卷（期）: 2021,（2）
• 所属期刊栏目: SPECTROSCOPY, LUMINESCENCE AND PHOSPHORS
• 页码范围: 146-150
• 页数: 5页
• 语种: 英文

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 64TeO2-20WO3-(16-y)Lu2O3-yTb2O3 were designed for scintillation application.The concentration-dependent optical properties of Tb3+-activated tellurium-lutetium-tungsten glasses were fully investigated by trans-mittance,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％Tb2O3 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.