稀土掺杂长余辉发光玻璃的研究

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摘要：分别采用空气气氛和还原气氛，制备了稀土Eu₂O₃，Dy₂O₃掺杂的铝硅酸盐玻璃，利用荧光光谱仪对样品进行了测试。结果表明：空气气氛条件下制备的铝硅酸盐玻璃样品均不具备长余辉发光性能, 其激发光谱和发光光谱均是Eu³⁺的⁵D_i(i=0, 1)→⁷F_j(j=0～4)跃迁的典型光谱。经还原气氛处理后，单掺和双掺的铝硅酸盐玻璃样品均具有长余辉发光现象，单掺Eu²⁺的发光峰位于462 nm，而双掺Eu²⁺和Dy³⁺的发光峰位于457 nm，且双掺Eu²⁺和Dy³⁺的样品陷阱能级较深，样品的发光持续时间长达12 h以上。

关键词：长余辉发光;铝硅酸盐玻璃;Eu₂O₃;Dy₂O₃

Abstract：A luminosilicate glass samples doped with Eu₂O₃ and Dy₂O₃ were prepared under the air and reducing atmosphere respectively. The excitation spectra, emission spectra and thermal luminescence spectra of the samples prepared under different atmosphere were measured. Luminescence mechanism of the afterglow glasses was analyzed. The results showed that the sample prepared under an ambient atmosphere has no afterglow. Its excitation and emission spectra showed the typical transitions of ⁵D_i(i=0, 1)→⁷F_j(j=0-4) from Eu³⁺ but the sample reheated at a reducing atmosphere has afterglow. The sample doped with Eu²⁺ shows luminescence peaking at 462 nm. And the sample codoped with Eu²⁺and Dy³⁺ shows luminescence peaking at 457 nm. The afterglow luminescence can last more than 12 h.

Key words：Long afterglow luminescence;Aluminosilicate glass;Eu₂O₃;Dy₂O₃

收稿日期: 2004-06-02 修订日期: 2004-10-18

中图分类号:

O463.2

通讯作者: 张希艳

引用本文:

张希艳，米晓云，肖志义, 刘全生. 稀土掺杂长余辉发光玻璃的研究[J]. 光谱学与光谱分析, 2005, 25(11): 1756-1759.
ZHANG Xi-yan,MI Xiao-yun,XIAO Zhi-yi,LIU Quan-sheng. Study on Rare Earth Doped Long Luminescence Glass. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(11): 1756-1759.

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https://www.gpxygpfx.com/CN/Y2005/V25/I11/1756