کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1813993 | 1025643 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sensitized red luminescence from Bi3+ co-doped Eu3+: ZnO-B2O3 glasses
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Sensitized red luminescence from Bi3+ co-doped Eu3+: ZnO-B2O3 glasses Sensitized red luminescence from Bi3+ co-doped Eu3+: ZnO-B2O3 glasses](/preview/png/1813993.png)
چکیده انگلیسی
Photoluminescence properties of Bi3+ co-doped Eu3+ containing zinc borate glasses have been investigated and the results are reported here. Bright red emission due to a dominant electric dipole transition 5D0â7F2 of the Eu3+ ions has been observed from these glasses. The nature of Stark components from the measured fluorescence transitions of Eu3+ ions reveal that the rare earth ions could take the lattice sites of Cs or lower point symmetry in the zinc borate glass hosts. The significant enhancement of Eu3+ emission intensity by 346Â nm excitation (1S0â3P1 of Bi3+ ions) elucidates the sensitization effect of co-dopant. The energy transfer mechanism between sensitizer (Bi3+) and activator (Eu3+) ions has been explained.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 404, Issue 20, 1 November 2009, Pages 3525-3529
Journal: Physica B: Condensed Matter - Volume 404, Issue 20, 1 November 2009, Pages 3525-3529
نویسندگان
Atul D. Sontakke, Anal Tarafder, Kaushik Biswas, K. Annapurna,