کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5459401 | 1516168 | 2017 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A study of structural, morphological and optical properties of nanostructured ZnSe/ZnS multilayer thin films
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Nanostructured ZnSe/ZnS multilayer thin films with excellent blue light emission were prepared using the electron beam evaporation technique. The structures and crystallization of the nanostructured ZnSe/ZnS multilayer thin films were studied by X-ray diffraction, which revealed a good crystallization with cubic structure of ZnSe and wurtzite structure of ZnS. The surface and inner morphologies of these films were analyzed by the Scanning Electron Microscopic and Transmission Electron Microscope, respectively. Optical transmission spectra were also investigated by UV-vis-NIR scanning spectrophotometer. Furthermore, the blue emission spectra of annealed films locating at about 440Â nm were obtained, which corresponded to near band-edge emission of ZnSe. An obvious blue-shift of near band-edge emission was observed with annealing temperature increasing due to the quantum confinement effects. It is full of great potential for the nanostructured films to be used in optoelectronic devices based on outstanding blue luminescence performance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 726, 5 December 2017, Pages 707-711
Journal: Journal of Alloys and Compounds - Volume 726, 5 December 2017, Pages 707-711
نویسندگان
Kai Ou, Shenwei Wang, Guangmiao Wan, Miaoling Huang, Yanwei Zhang, Liyuan Bai, Lixin Yi,