Extended X-ray absorption fine structure (EXAFS) study of CaSO_4:Dy phosphors

D. Bhattacharyya; A.K. Bakshi; G. Ciatto; G. Aquilanti; A.S. Pradhan; S. Pascarelli

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Extended X-ray absorption fine structure (EXAFS) study of CaSO_4:Dy phosphors

机译：CaSO_4：Dy荧光粉的扩展X射线吸收精细结构（EXAFS）研究

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Extended X-ray absorption fine structure (EXAFS) measurements have been carried out on CaSO_4:Dy phosphors at the Dy L_3 edge with synchrotron radiation. The data have been analysed to find out the Dy-S and Dy-O bond lengths in the neighborhood of the Dy atoms. Measurements have been carried out over several samples thermally annealed for different cycles at 400℃ in air for 1 h and the change in bond lengths in samples with increasing number of annealing cycles have been studied by analyzing the EXAFS data.

机译：使用同步加速器辐射在Dy L_3边缘的CaSO_4：Dy磷光体上进行了扩展的X射线吸收精细结构（EXAFS）测量。对数据进行了分析，以找出Dy原子附近的Dy-S和Dy-O键长。对几个样品进行了测量，这些样品在空气中在400℃下进行了1个小时的不同热退火，并通过分析EXAFS数据研究了随着退火循环次数的增加，样品中键长的变化。

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来源
《Solid State Communications》 |2006年第12期|p.650-653|共4页
作者
D. Bhattacharyya; A.K. Bakshi; G. Ciatto; G. Aquilanti; A.S. Pradhan; S. Pascarelli;
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作者单位

Bhabha Atomic Research Centre, Mumbai 400 085, India;

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原文格式 PDF
正文语种 eng
中图分类固体物理学;
关键词
C. EXAFS; C. Local structure; E. Thermoluminescence;

机译：C.EXAFS;C。局部结构;E.热致发光;

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Extended X-ray absorption fine structure (EXAFS) study of CaSO_4:Dy phosphors

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