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Long-Lasting Phosphorescent Properties of Tb~(3+) Doped ZnO-P_2O_5-SiO_2 Glasses

机译:Tb〜(3+)掺杂ZnO-P_2O_5-SiO_2玻璃的持久磷光性能

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摘要

The long-lasting phosphorescent glass with the composition of ZnO-P_2O_5-SiO_2: Tb~(3+) was prepared by melt-quenched method. After irradiation by 254 nm light, a visible greenish light can be observed with the naked eyes, in the dark for up to 9 h after removal of the activating light. The luminescent properties of ZnO-P_2O_5-SiO_2: Tb~(3+) were studied by fluorescence spectra, afterglow spectra and thermoluminescence spectra. The results show that the luminescent properties of the glasses become better with the increase of ZnO contents. The luminescent properties of glasses increase with the increase of Tb~(3+) contents. When 2% of ZnO is replaced by 2% of RO (RO = CaO, SrO, BaO), the luminescent property of glasses become worse in the order of CaO, SrO, BaO. The higher the contents of RO (RO = CaO, SrO, BaO) are, the worse the luminescent properties of the glasses become.
机译:采用熔融淬火法制备了组成为ZnO-P_2O_5-SiO_2:Tb〜(3+)的长效磷光玻璃。在254 nm的光照射后,可以用肉眼观察到可见的绿色光,在去除激活光后,在黑暗中长达9 h。通过荧光光谱,余辉光谱和热致发光光谱研究了ZnO-P_2O_5-SiO_2:Tb〜(3+)的发光性质。结果表明,随着ZnO含量的增加,玻璃的发光性能变得更好。随着Tb〜(3+)含量的增加,玻璃的发光性能也随之增强。当2%的ZnO被2%的RO代替(RO = CaO,SrO,BaO)时,玻璃的发光性能会按CaO,SrO,BaO的顺序变差。 RO的含量(RO = CaO,SrO,BaO)越高,玻璃的发光特性越差。

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