کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5398782 | 1505893 | 2015 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Activation of visible up-conversion luminescence in transparent and conducting ZnO:Er:Yb films by laser annealing
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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: Activation of visible up-conversion luminescence in transparent and conducting ZnO:Er:Yb films by laser annealing Activation of visible up-conversion luminescence in transparent and conducting ZnO:Er:Yb films by laser annealing](/preview/png/5398782.png)
چکیده انگلیسی
Transparent and conducting ZnO:Er:Yb thin films with visible up-conversion (660-nm emission under 980-nm excitation) were fabricated by RF magnetron sputtering. The as-deposited films were found to be transparent and conducting and the activation of the Er ions in these films to produce up-conversion luminescence was achieved by different post-deposition annealing treatments in air, vacuum or by laser annealing using a Nd:YVO4 laser. The structural, electrical and optical properties and the up-conversion efficiency of these films were found to be strongly influenced by the annealing method, and a detailed study is reported in this paper. It has been demonstrated that, although the air annealing was the most efficient in terms of up-conversion, laser annealing was the only method capable of activating Er ions while preserving the electrical conductivity of the doped films. It has been shown that a minimum energy was needed in laser annealing to optically activate the rare earth ions in the ZnO host material to produce up-conversion. Up-converting and transparent conducting ZnO:Er:Yb films with an electrical resistivity of 5Ã10â2 Ω cm and transparency ~80% in the visible wavelength range has been achieved by laser annealing.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 167, November 2015, Pages 101-105
Journal: Journal of Luminescence - Volume 167, November 2015, Pages 101-105
نویسندگان
M. Lluscà , J. López-Vidrier, S. Lauzurica, M.I. Sánchez-Aniorte, A. Antony, C. Molpeceres, S. Hernández, B. Garrido, J. Bertomeu,