Effect of Mn-doping on the growth mechanism and electromagnetic properties of chrysanthemum-like ZnO nanowire clusters |
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Authors: | Yan Jun-Feng You Tian-Gui Zhang Zhi-Yong Tian Jiang-Xiao Yun Jiang-Ni Zhao Wu |
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Affiliation: | School of Information Science and Technology, Northwest University, Xi'an 710069, China; Key Laboratory of Optoelectronic Technology of Shaanxi Province, Northwest University, Xi'an 710069, China |
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Abstract: | Chrysanthemum-like ZnO nanowire clusters with different Mn-doping concentrations are prepared by a hydrothermal process. The microstructure, morphology and electromagnetic properties are characterized by x-ray diffractometer high-resolution transmission electron microscopy (HRTEM), a field emission environment scanning electron microscope (FEESEM) and a microwave vector network analyser respectively. The experimental results indicate that the as-prepared products are Mn-doped ZnO single crystalline with a hexagonal wurtzite structure, that the growth habit changes due to Mn-doping and that a good magnetic loss property is found in the Mn-doped ZnO products, and the average magnetic loss tangent tanδm is up to 0.170099 for 3% Mn-doping, while the dielectric loss tangent tanδe is weakened, owing to the fact that ions Mn2 + enter the crystal lattice of ZnO. |
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Keywords: | chrysanthemum-like ZnO nanowire clusters electromagnetic properties hydrothermal method Mn-doping |
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