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Improvement of electrical conductivity and leakage current in co-precipitation derived Nd-doping BiFeO3 ceramics

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Abstract

BiFeO3 and Bi0.925Nd0.075FeO3 ceramics were prepared by co-precipitation method. The crystal structure and electrical properties of the samples were characterized by X-ray diffraction (XRD), impedance spectra and leakage current measurement. XRD result implied that the impurity phases are weakened by suitably doping Nd. The impedance spectra of BiFeO3 sample indicate that low grain boundary resistance and non Debye-type relaxation below the Néel temperature. Complex impedance spectra suggested that the doped samples are closer to Debye-type, and the grain boundary resistance increases which lead to low leakage current density.

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (Grant Nos. 10774030, 11032010 and 11202054), the Guangdong Provincial Natural Science Foundation of China (Grant Nos. 8151009001000003 and 10151009001000050), and the Guangdong Provincial Educational Commission of China (Grant No. 2012KJCX0044).

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Authors and Affiliations

  1. Guangzhou Higher Education Mega Center, School of Physics and Optoelectric Engineering, Guangdong University of Technology, Guangzhou, 510006, China

    Yan-Ping Jiang, Xin-Gui Tang, Qiu-Xiang Liu, Dong-Ge Chen & Cai-Bing Ma

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  1. Yan-Ping Jiang
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  2. Xin-Gui Tang
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  3. Qiu-Xiang Liu
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  4. Dong-Ge Chen
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Correspondence to Xin-Gui Tang.

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Jiang, YP., Tang, XG., Liu, QX. et al. Improvement of electrical conductivity and leakage current in co-precipitation derived Nd-doping BiFeO3 ceramics. J Mater Sci: Mater Electron 25, 495–499 (2014). https://doi.org/10.1007/s10854-013-1614-3

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  • DOI: https://doi.org/10.1007/s10854-013-1614-3

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