کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7924150 | 1511939 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spray pyrolysis synthesis of CuxFe1âxS2 and their structural, electronic and optical properties: Experimental and first-principles study
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Iron pyrite, FeS2 (FS) and the chalcopyrite copper iron sulphide CuxFe1âxS2 (CFS) thin films were synthesized using chemical spray pyrolysis (CSP) deposition technique. The effect of different Cu concentration (1, 3, 5 and 7Â at.%) on growth of these films was investigated. The as-synthesized CFS thin films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and ultraviolet-visible (UV-Vis) spectroscopy. The XRD pattern of FS show a structured cubic phase with preferential orientation along (2Â 0Â 0) plane, and CFS crystallized in chalcopyrite (tetragonal) with preferential orientations along (1Â 1Â 2) plane with crystallite size 142-91Â Ã
. Optical absorption data show that the band gap of spray deposited FS and CFS films is 0.920-0.558Â eV and the absorption coefficients significantly modified with the increase of Cu concentration from 3.619Â ÃÂ 105Â cmâ1 to 4.231Â ÃÂ 105Â cmâ1. Furthermore, these results have been adopted in accordance with the first principles calculations of electronic structure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: B - Volume 227, January 2018, Pages 100-109
Journal: Materials Science and Engineering: B - Volume 227, January 2018, Pages 100-109
نویسندگان
M. Rouchdi, E. Salmani, H. Cherrad, M. Addou, H. Ez-zahraoui, N. Hassanain, A. Mzerd,