کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7840517 | 1505866 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spectroscopic properties and Judd-Ofelt analysis of Dy3+ ions in molybdenum borosilicate glasses
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Spectroscopic properties and Judd-Ofelt analysis of Dy3+ ions in molybdenum borosilicate glasses Spectroscopic properties and Judd-Ofelt analysis of Dy3+ ions in molybdenum borosilicate glasses](/preview/png/7840517.png)
چکیده انگلیسی
Borosilicate glasses containing MoO3 and Dy2O3 were prepared by the melt quenching technique. The structure and the thermal properties of these glasses have been performed by using infrared (IR) technique at room temperature and DTA. The mechanical properties have been experimentally determined and calculated according to Makishima-Mackenzie model. The optical properties of the prepared glasses have been studied using the UV - Spectroscopy. The glass transition temperature and the optical band gap decrease with increasing the MoO3 content. The values of the optical band gap lie between 2.25-3.22 eV. The optical properties of the Dy3+ ion have been investigated using the Judd-Ofelt approach. The oscillator strengths and optical intensity parameters, Ωt = 2, 4 and 6 have been evaluated. An interesting behavior of the calculated lifetime versus total angular momentum, J, has been observed, where, the lifetime values of the 6FJ states show an exponential increase versus J.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 196, April 2018, Pages 477-484
Journal: Journal of Luminescence - Volume 196, April 2018, Pages 477-484
نویسندگان
KH.S. Shaaban, A.A. El-Maaref, M. Abdelawwad, Y.B. Saddeek, H. Wilke, H. Hillmer,