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题名	锡和锡/钆共掺高硅氧玻璃荧光性能和闪烁性能的研究
作者	杨科
文献子类	硕士
导师	陈丹平
关键词	Sn Sn 多孔玻璃 Porous glass 荧光发光 Luminescence 闪烁玻璃 Scintillation
其他题名	Luminescence and Scintillation Properties of Tin and Tin/Gadolinium co-doped in high silica glass
英文摘要	稀土离子由于具有丰富的能级而广泛的应用于发光和显示等领域，是发光材料最常用的发光中心。具有ns2电子组态的金属离子在近紫外和可见波段也有很强的荧光，例如Bi3+、Sb3+和Pb2+离子等，这是因为ns2电子组态具有s-p部分允许跃迁，这些金属离子也是发光材料很重要的发光中心。但是关于Sn2+离子的研究，特别是其闪烁发光性能方面的研究很少。本论文研究了Sn2+离子掺杂高硅氧玻璃的光谱性能，重点讨论了Sn2+离子掺杂高硅氧玻璃在闪烁应用方面的前景。具体内容如下： 第一章主要介绍了荧光材料和闪烁材料的基本知识，包括闪烁材料的定义、分类、发光原理和应用以及进展。最后说明了本论文的研究内容。 第二章主要介绍掺杂高硅氧玻璃的制备方法以及性能的测试手段。通过分相法制备高硅氧多孔玻璃，结合溶液掺杂和气氛烧结获得Sn等离子掺杂的高硅氧玻璃。然后，使用专门仪器表征样品的光谱和闪烁发光等性能。 第三章主要介绍了Sn元素在高硅氧玻璃中的荧光和闪烁性能。通过对比样品在空气氛围和CO还原氛围烧结后的荧光强度，提出了Sn元素在高硅氧玻璃中的发光中心是Sn2+离子，并给出了具体的跃迁机制和能级图。在X射线的激发下，Sn2+离子掺杂高硅氧玻璃的闪烁发光强度与商用BGO相当，说明这种玻璃在闪烁发光方面有应用前景。 第四章主要研究了Gd3+/Sn2+离子共掺的高硅氧玻璃的荧光和闪烁性能。探索了Gd3+离子和Sn2+离子在石英玻璃中的能量传递，得到在高硅氧玻璃中，Gd3+离子和Sn2+离子能够相互之间进行能量传递，增强彼此的发光强度。并且通过在Sn2+离子掺杂高硅氧玻璃中共掺Gd3+离子来提高Sn2+离子的闪烁发光效率。 最后总结了本论文的研究内容和提出了论文的创新点和不足之处。; Because of rich energy levels, rare earth ions are widely used in luminescence, display, etc. They are the common luminescent center of luminescent materials. The metal ions with the ns2 configuration also have strong emission in the near ultraviolet and visible light, such as Bi3+, Sb3+ and Pb2+ ions et al. Because the ns2 configuration has a s-p transition, which is parity allowed. These metal ions are also very important luminescent center for the luminescent materials. However, there is little research on Sn2+ ions, although it has a strong luminescence due to the ns2 configuration. In this paper, the luminescence and scintillation properties of Sn2+ ions doped high silica glass were studied. The prospect of Sn2+ ions doped high silica glass in scintillation application was discussed emphatically. The details are as follows: The first chapter introduces the basic knowledge of fluorescent materials and scintillating materials, including the definition, classification, principle and application of scintillation material. Finally, the contents of this paper are described. The second chapter mainly introduces the preparation method of doped high silica glass and the measurement method of various properties. The high silica glass was prepared by the phase separation method, and then the porous glasses, which are doped by solutions, were sintered to be the doped high silica glasses. Then, various instruments are used to measure the spectral and scintillation properties of the samples. The third chapter mainly introduces the luminescence and scintillation properties of Sn element doped high silica glass. By comparing the fluorescence intensity of the samples sintered in the air atmosphere and the CO reduction atmosphere, we propose that the luminescent center of the Sn element in the high silica glass is Sn2+ ions, and the specific transition mechanism and energy level diagram are given. The scintillation efficiency of Sn2+ ions doped high silica glass is comparable to that of commercial BGO, which shows that this kind of glass is promising in scintillation. In the fourth chapter, the fluorescence and scintillation properties of Gd3+/Sn2+ ions co-doped high silica glass were studied. We explored the energy transfer between Gd3+ ions and Sn2+ ions in quartz glass, and find that Gd3+ ions and Sn2+ ions can transfer energy to each other in high silica glass to enhance the emission intensity. And the scintillation efficiency of Sn2+ ions is improved by doping Gd3+ ions in Sn2+ ions doped high silica glass. Finally, the research contents and conclusions of this paper are summarized. And we put forward highlights and shortcomings.
学科主题	材料学
内容类型	学位论文
源URL	[http://ir.siom.ac.cn/handle/181231/30988]
专题	中国科学院上海光学精密机械研究所
作者单位	中国科学院上海光学精密机械研究所
推荐引用方式 GB/T 7714	杨科. 锡和锡/钆共掺高硅氧玻璃荧光性能和闪烁性能的研究[D].

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