کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9586290 | 1505940 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Photoluminescence of Er3+ ions in Bi2TeO5 single crystals
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Photoluminescence of Er3+ ions in Bi2TeO5 single crystals Photoluminescence of Er3+ ions in Bi2TeO5 single crystals](/preview/png/9586290.png)
چکیده انگلیسی
Optical absorption and emission spectra of Er3+ ions in Bi2TeO5 single crystals have been studied at room temperature. Besides the H11/22âI15/24, S3/24âI15/24, and F9/24âI15/24, emission, that were typically strong under excitation to higher energy manifolds than the actual emission, the S3/24âI13/24 luminescence was also intense. The visible transitions were assigned, and Judd-Ofelt calculation was performed by fitting the experimental data set. The calculated Ωt Judd-Ofelt intensity parameters (Ω2=6.98±0.57Ã10-21 cm2; Ω4=1.74±0.05Ã10-21 cm2; Ω6=1.23±0.12Ã10-21 cm2) were consistent with the Bi2TeO5 crystal structure and the Er3+ substitution for Bi sites. The radiative transition probabilities, the branching ratios and the radiative lifetime of the transitions of Er3+ ions in bismuth tellurite were also calculated. The results are analyzed for potential application of Bi2TeO5:Er3+ as a new laser material.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 111, Issues 1â2, 1 January 2005, Pages 25-35
Journal: Journal of Luminescence - Volume 111, Issues 1â2, 1 January 2005, Pages 25-35
نویسندگان
R. Sosa, I. Földvári, A. Watterich, A. Munoz, R.S. Maillard, G. Kugel,