کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5438119 | 1398181 | 2017 | 25 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The effect of current density on the composition, structure, morphology and optical properties of galvanostatically electrodeposited nanostructured cadmium telluride films
ترجمه فارسی عنوان
اثر تراکم جریان بر ترکیب، ساختار، مورفولوژی و خواص اپتیکی فیلم های تلورید کادمیوم نانوساختار الکترودهایی
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کلمات کلیدی
فیلم تلورید کادمیوم، الکترود گالواناستاتیک، ساختار، ترکیب بندی، خواص نوری،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
Cadmium telluride (CdTe) films were electrodeposited galvanostatically on fluorine doped tin oxide (FTO) substrates at various applied current densities. The electrodeposited films were characterized using X-ray diffraction spectroscopy (XRD), scanning electron microscopy (SEM) and optical absorption spectroscopy techniques. The results showed that amount of cadmium in the deposited films were enhanced by increasing the applied current density. It was observed that an applied current density of 18Â mA/cm2 produced Cd:Te films with 1:1 stoichiometry. Moreover, the maximum optical absorption and the closest band gap value to the expected one for CdTe (1.45Â ev) were observed in the case of stoichiometric films which had less porosity and larger crystallite size among the films that were electrodeposited at applied current densities other than the optimum value. In addition, those films that were heat treated had less porosity in their structure, larger crystallite size and less band gap energy compared to the films without heat treatment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 43, Issue 1, Part A, January 2017, Pages 121-127
Journal: Ceramics International - Volume 43, Issue 1, Part A, January 2017, Pages 121-127
نویسندگان
O. Razmjoo, M.E. Bahrololoom, P. Najafisayar,