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Published in:
17-10-2016
Comparative studies of the structural and magnetic properties in Cu, Co codoped ZnO multilayer films sputtered on different substrates
Published in: Journal of Materials Science: Materials in Electronics | Issue 3/2017
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Abstract
The Zn0.959Cu0.023Co0.018O multilayer films on silicon and polystyrene particles array were prepared using RF magnetron sputtering technique. The influences of the substrate on structural and magnetic properties of Cu, Co codoped ZnO multilayer films were investigated by X-ray diffraction, Scanning electron microscope, X-ray photoelectron spectroscopy, and vibrating sample magnetometer. The results indicated that all the samples were the wurtzite structure with hexagonal shapes of ZnO holding different degree of preferred orientation, the Cu2+, Cu+ and the Co3+, Co2+ ions would uniformly substitute into the Zn2+ sites of ZnO lattice in the samples sputtered on the different substrates. All the samples showed room temperature ferromagnetism, the saturation magnetization and the coercivity of the samples sputtered on the different substrates changed due to the chemical states of the Cu and anisotropy energy of the samples.