کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5438870 | 1398188 | 2017 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structural and optical properties of Ca doped BiFeO3 thin films prepared by a sol-gel method
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Bi1-xCaxFeO3 (BCFO, x=0.00, 0.05, 0.10, 0.15, 0.20) thin films were prepared by a sol-gel process. The structural and optical properties of the BCFO films were investigated. X-ray diffraction showed that all the films were single perovskite structure, and a phase transition appeared with the increasing of the Ca2+ concentration. SEM images showed that the morphologies of the surface became smoother and the grain size reduced with the increasing concentration of Ca2+ ions. Raman spectra showed that the microstructure distortion and phase transition appeared with Ca2+ ion doping. The UV-visible absorption spectra showed that the band gaps of Bi1-xCaxFeO3 films with x=0.00, 0.05, 0.10, 0.15 and 0.20 were about 2.18, 2.19, 2.23, 2.35 and 2.36Â eV, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 43, Supplement 1, August 2017, Pages S470-S473
Journal: Ceramics International - Volume 43, Supplement 1, August 2017, Pages S470-S473
نویسندگان
Lu Yao, Xiaohang Wu, Shenghong Yang, Yueli Zhang,