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
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Structural and optical properties of Ca doped BiFeO3 thin films prepared by a sol-gel method
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 2.36 eV, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 43, Supplement 1, August 2017, Pages S470-S473
نویسندگان
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