کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9618694 | 49464 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Transformation of amorphous iron oxide thin films predeposited by spray pyrolysis into a single FeSe2-phase by selenisation
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Transformation of amorphous iron oxide thin films predeposited by spray pyrolysis into a single FeSe2-phase by selenisation Transformation of amorphous iron oxide thin films predeposited by spray pyrolysis into a single FeSe2-phase by selenisation](/preview/png/9618694.png)
چکیده انگلیسی
The present paper investigates a simple and non-toxic method to transform amorphous iron oxide pre-deposited by spray pyrolysis of FeCl3·6H2O (0.03 M)-based aqueous solution onto glass substrates heated at 350 °C into FeSe2 thin films. The amorphous iron oxide films were heat treated under a selenium atmosphere (10â4 Pa) at different temperatures for 6 h. X-ray diffraction (XRD) was used to investigate the structure of the obtained films. Single FeSe2-phase films having good crystallinity were obtained at a selenisation temperature of 550 °C. Optical analyses of the FeSe2 films obtained at 550 °C enabled us to deduce a large absorption coefficient (α>105cm-1, λ<800nm). Surface scanning electron microscopy (SEM) observations show inhomogeneous films. Electrical conductivity of the as-prepared films was measured at high and low temperatures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy Materials and Solar Cells - Volume 87, Issues 1â4, May 2005, Pages 501-511
Journal: Solar Energy Materials and Solar Cells - Volume 87, Issues 1â4, May 2005, Pages 501-511
نویسندگان
B. Ouertani, J. Ouerfelli, M. Saadoun, B. Bessaïs, H. Ezzaouia, J.C. Bernède,