کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5466009 1517976 2017 30 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Polar and nonpolar self-assembled Co-doped ZnO thin films: Structural and magnetic study
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Polar and nonpolar self-assembled Co-doped ZnO thin films: Structural and magnetic study
چکیده انگلیسی
Novel nanostructures of self-assembled Co-doped ZnO films were successfully synthesized by hydrothermal synthesis process. Our investigation indicates that the growth reaction rate is the key factor that controls the morphology evolution and crystallographic orientation of self-assembled Co-doped ZnO films via changing the reaction solution concentration. The preferential growth direction of Co-doped ZnO films alters from polar [0001] to non-polar [10‐10] lattice direction by increasing the concentration, which facilitates the transformation from 1D nanorods, assembled in straw-like structure, to 2D nanosheets with dendrite-like structure. Interestingly, room-temperature ferromagnetism is observed in both of polar (0001) c-plane and non-polar (10 − 10) m-plane Co-doped ZnO films. As the most promising nanostructures, the assembled nanostructured Co-doped ZnO films may find future applications in spintronics devices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 636, 31 August 2017, Pages 200-206
نویسندگان
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