کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5398149 | 1505881 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fano׳s antiresonance and crystal-field study of Cr3+ in metaphosphate glasses
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Fano׳s antiresonance and crystal-field study of Cr3+ in metaphosphate glasses Fano׳s antiresonance and crystal-field study of Cr3+ in metaphosphate glasses](/preview/png/5398149.png)
چکیده انگلیسی
This work is devoted in first part to a study of the features observed on the 4T2g (4F) absorption band of phosphate glasses containing Cr3+. These features results from interaction of the 2Eg (2G) and 2T1g (2G) sharp levels with the vibrationally broadened 4T2g (4F) quasi-continuum via spin-orbit coupling and have been analyzed in the frame of the Fano׳s antiresonance model. In second part, the electronic structure of Cr3+ ion occupying Oh site symmetry in the phosphate glasses is determined by the crystal-field analysis. The influence of the different oxides (Na2O, PbO, ZnO) on the spectroscopic properties of Cr3+ is evaluated. In metaphosphate glasses, we found that Na2O and PbO oxides act as glass modifiers while ZnO enters the glass forming network.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 180, December 2016, Pages 183-189
Journal: Journal of Luminescence - Volume 180, December 2016, Pages 183-189
نویسندگان
O. Taktak, H. Souissi, O. Maalej, B. Boulard, S. Kammoun,