کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1497425 | 993008 | 2006 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
UV-assisted crystallisation of tellurite and germanate-based glasses
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: UV-assisted crystallisation of tellurite and germanate-based glasses UV-assisted crystallisation of tellurite and germanate-based glasses](/preview/png/1497425.png)
چکیده انگلیسی
Glass ceramics, which are of significant interest for the production of new optoelectronic devices, are usually obtained by heat treatment of a glass at the crystallisation temperature. We show in this paper that partition of Er3+ ions into crystal nanophase can also be achieved by irradiating tellurite or germanate-based glasses with a cw UV laser during annealing treatment performed at a temperature lower than the crystallisation temperature. Thermal differential analysis is used to measure the crystallisation temperatures of these two kinds of glasses. Sharp fluorescence peaks characteristic of a crystal-like structure reveal the successful crystallisation of the glass after UV exposure. The intensity of the red emission, due to the 4F9/2 â 4I15/2 transition of the Er3+ ions, is used to prove that UV exposure leads to a higher fraction of active ions into crystals than in case of pure thermal annealing.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 28, Issue 11, August 2006, Pages 1276-1279
Journal: Optical Materials - Volume 28, Issue 11, August 2006, Pages 1276-1279
نویسندگان
François Goutaland, M. Mortier, B. Capoen, S. Turrell, M. Bouazaoui, A. Boukenter, Y. Ouerdane,