کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7840503 | 1505867 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Luminescence and light guiding properties of Er and Li codoped ZnO nanostructures
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Micro- and nanostructures of ZnO co-doped with Er and Li ions have been grown by a catalyst free vapor-solid method under constant N2 flux. Nanowires and nanobelts with lengths of several microns, and thicknesses of a few hundreds of nanometers have been obtained. Scanning Electron Microscopy (SEM), X Ray Microanalysis (EDS) and micro-Raman spectroscopy have been used to characterize the samples. Luminescent emission has been studied by cathodoluminescence (CL). Modifications in the defect structure due to Li incorporation are observed. An increase in the relative intensity of the Er3+ - related 0.8 eV (1.54 µm) emission band in the co-doped samples has been observed. Micro-photoluminescence (µ-PL) has been used to investigate the optical properties of the structures. The establishment of optical resonant modes and wave guiding along both the longitudinal and transversal axes of the structures have been observed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 195, March 2018, Pages 396-401
Journal: Journal of Luminescence - Volume 195, March 2018, Pages 396-401
نویسندگان
F. Pavón, A. Urbieta, P. Fernández,