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铈和铽离子掺杂硼硅酸盐玻璃的发光性能
作者:程峰 王宝义 王天民 魏龙  
单位:兰州大学物理科学与技术学院 中国科学院高能物理研究所 北京航空航天大学理学院 中国科学院高能物理研究所 兰州730000中国科学院高能物理研究所 北京100049 北京100049 北京100083 北京100049 
关键词:    硼硅酸盐玻璃  发光性能  闪烁体 
分类号:TQ171.1
出版年,卷(期):页码:2008,36(7):1018-1021
DOI:
摘要:

采用传统方法制备了Ce3+和Tb3+掺杂的硼硅酸盐玻璃样品。应用紫外可见分光光度计和荧光光谱仪测试了样品的透过、激发和发射光谱,并测量了Ce3+掺杂玻璃样品在X射线激发下的发射光谱。结果表明:基质玻璃具有很好的透光性能,截止波长约为300nm,适于用作掺杂稀土离子的玻璃闪烁体的基质材料;与基质玻璃相比,Ce3+掺杂玻璃样品的截止波长发生红移;随着Ce3+离子含量的增加,样品的紫外截止波长向长波方向位移;随着基质玻璃光碱度的增加,Ce3+掺杂玻璃样品的激发峰和发射峰发生红移,Stokes位移增大;对于Ce3+和Tb3+共掺杂硼硅酸盐玻璃,存在Ce3+敏化Tb3+发光现象;在X射线激发下,Ce3+掺杂玻璃样品的发射光谱与荧光光谱相似,但发射峰发生红移。

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Ce3 +and Tb 3+-doped borosilicate glass was prepared by traditional method.The transmission,emission and excitation spectra were measured.The results show that compared with the Ce-free borosilicate glass matrices,Ce3 +doping shifts the UV cut-off wavelength of glass into the longer wavelength.The excitation peak wavelength and the emission peak wavelength of Ce3 +have an obvious red-shift due to the higher optical basicity of borosilicate glasses than that of phosphate glasses.The luminescence sensitization of Tb3 +by Ce 3+was occurred in Ce 3+and Tb 3+co-doped glasses.Under X-ray excitated,the emission spectra of Ce 3+doped glasses are similar to that acquired by fluorescence spectrometer.

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基金项目:
国家自然科学基金(10475096)资助项目
作者简介:
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参考文献:

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