کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5400660 | 1505919 | 2013 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced photoluminescence of Y2O3:Er3+ thin films by Li+ co-doping
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The enhancement of the photoluminescence from Y2O3:Er3+ thin films with Li+ co-doping is reported. The characteristic Er3+ related emission spectra showed an intensity increase by a factor of â¼4-5 times with the addition of 2% of Li+. This behavior is attributed to the distortion of the local crystalline field induced by the incorporation of Li+. The films were deposited at 500 °C by ultrasonic spray pyrolysis technique on (1 0 0) silicon wafers. The films were the polycrystalline with a pure Y2O3 cubic phase. The addition of Li+ reduces the intensity of the diffraction peaks after 1%, and shifts the main diffraction peak toward large angles for Li+ doping less than 3%. FTIR spectra were used to monitor the incorporation of Li-species in the films.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 141, September 2013, Pages 173-176
Journal: Journal of Luminescence - Volume 141, September 2013, Pages 173-176
نویسندگان
A.N. Meza-Rocha, E.F. Huerta, E. Zaleta-Alejandre, Z. Rivera-Álvarez, C. Falcony,