کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8001006 | 1516276 | 2014 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructural and optical studies of CuO thin films prepared by chemical ageing of copper substrate in alkaline ammonia solution
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Microstructural and optical studies of CuO thin films prepared by chemical ageing of copper substrate in alkaline ammonia solution Microstructural and optical studies of CuO thin films prepared by chemical ageing of copper substrate in alkaline ammonia solution](/preview/png/8001006.png)
چکیده انگلیسی
In this paper, we report on the time-dependent development of cupric oxide films by chemical modification of copper substrates submerged horizontally in a room temperature 75Â mmol/L ammonia solution at pH 11, over a period of nine days. Morphological and structural characterization of the oxide-substrate tandems were carried out by SEM-EDX and XRD, while the relative directional spectral absorptivity and reflectivity were determined by Vis-NIR spectrometry. The ageing process, controlling both the color and morphological structure of the predominately amorphous-CuO/Cu, has positively contributed to the enhancement of spectral absorptivity, while band gap values evolve from 1.29 to 1.39Â eV for exposure times from 36 to 168Â h.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 617, 25 December 2014, Pages 542-546
Journal: Journal of Alloys and Compounds - Volume 617, 25 December 2014, Pages 542-546
نویسندگان
Abdul Hai Alami, Anis Allagui, Hussain Alawadhi,