期刊
MATERIALS LETTERS
卷 238, 期 -, 页码 271-274出版社
ELSEVIER
DOI: 10.1016/j.matlet.2018.11.171
关键词
Electronic materials; Magnetic materials; Zinc oxide; Electromagnetic loss
资金
- Hong Kong Scholars Program [G-YZ0G]
- Natural Science Foundation of Jiangsu Province [BK20180091]
- National Natural Science Foundation of China [51402154]
- Six Major Talent Peak Expert [R2016L08]
In this paper, Co-doped ZnO nanoparticle and nanofiber are prepared by electrospinning method. The results show that Co-doped ZnO nanofiber performs bead-like fibrous shape and exhibits ferromagnetic properties. The dielectric loss and magnetic loss properties of Co-doped ZnO nanofiber are much better than those of Co-doped ZnO nanoparticle due to the improvement of dipole polarization, interfacial polarization and shape anisotropy. The absorptivity of Co-doped ZnO nanofiber can reach 70% in the frequency range of 5.3-18 GHz when the coating thickness is 1.5-4.0 mm. It is demonstrated that the bead-like fibrous shape is beneficial to optimize electromagnetic loss and microwave absorption properties of Co-doped ZnO. (C) 2018 Elsevier B.V. All rights reserved.
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