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Electrical Properties at Grain Boundaries Influenced by Cr3+ Diffusion in SnO2.ZnO.Nb2O5-Films Varistor Prepared by Electrophoresis Deposition

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Abstract

SnO2-based varistors are strong candidates to replace the ZnO-based varistors due to ordering fewer additives to improve its electrical behavior as well as by showing similar nonlinear characteristics of ZnO varistors. In this work, SnO2-nanoparticles based-varistors with addition of 1.0 %mol of ZnO and 0.05 %mol of Nb2O5 were synthesized by chemical route. SnO2.ZnO.Nb2O5-films with 5 μm of thickness were obtained by electrophoretic deposition (EPD) of the nanoparticles on Si/Pt substrate from alcoholic suspension of SnO2-based powder. The sintering step was carried out in a microwave oven at 1000 °C for 40 minutes. Then, Cr3+ ions were deposited on the films surface by EPD after the sintering step. Each sample was submitted to different thermal treatments to improve the varistor behavior by diffusion of ions in the samples. The films showed a nonlinear coefficient (α) greater than 9, breakdown voltage (VR) around 60 V, low leakage current (IF ≈ 10-6 A), height potential barrier above 0.5 eV and grain boundary resistivity upward of 107 Ω.cm.

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References

  1. A. B. Glot, A. V. Gaponov, A. P. Sandoval-Gracía, Physica B 405 705 (2010).

    Article  CAS  Google Scholar 

  2. Y. J. Wang, J. F. Wang, C. P. Li, H. C. Chen, W. B. Su, W. L. Zhong, P. L. Zhang, L. Y. Zhao, J. Mater. Sci. Lett. 20 19 (2001).

    Article  Google Scholar 

  3. P.A. Santos, S. Maruchin, G. F. Menegoto, A. J. Sara, S. A. Pianaro, Mater. Lett. 60 1554 (2006).

    Article  CAS  Google Scholar 

  4. M. Cilense, M. A. Ramirez, C. R. Foschini, D. R. Leite, A. Z. Simões, W. Bassi, E. Longo, J. A. Varela, J. Am. Ceram. Soc. 96 524 (2013).

    Article  CAS  Google Scholar 

  5. R. Metz, D. Koumeir, J. Morel, J. Pansiot, M. Houabes, M. Hassanzadeh, J. Eur. Ceram. Soc. 28 829 (2008).

    Article  CAS  Google Scholar 

  6. B. D. Stojanivic, C. R. Foschini, M. Cilense, M. A. Zaghete, A. A. Cavalheiro, C. O. Paiva-Santos, E. Longo, J, A Varela,nMater Chem Phys 68 136 (2001).

    Article  Google Scholar 

  7. J. He, Z. Peng, Z. Fu, Z. Wang, X. Fu, J. Alloy Compd. 528 79 (2012).

    Article  CAS  Google Scholar 

  8. H. Feng, Z. Peng, X. Fu, Z. Fu, C. Wang, L Qi, H. Miao, J. Alloy Compd. 509 7175 (2011).

    Article  CAS  Google Scholar 

  9. S. A. Pianaro, P. R. Bueno, P. Olivi, E. Longo, J. A. Varela, J. Mater. Sci.-Mater. El. 9 159 (1998).

    Article  CAS  Google Scholar 

  10. J. F. Wang, W. B. Su, H. C. Chen, W. X. Wang, G. Z. Zang, J. Am. Ceram. Soc. 88 331 (2005).

    Article  CAS  Google Scholar 

  11. A. A. Felix, M. O. Orlandi, J. A. Varela, Solid State Commun. 151 1377 (2011).

    Article  CAS  Google Scholar 

  12. S. K. Tadokoro, E. N. S. Muccillo, Cerâmica 47 100 (2001).

    Article  CAS  Google Scholar 

  13. M. R. Cássia-Santos, V. C. Sousa, M. M. Oliveira, P. R. Bueno, W. K. Bacelar, M. O. Orlandi, C. M. Barrado, J. W. Gomes, E. Longo, E. R. Leite, J. A. Varela, Cerâmica 47 136 (2001).

    Article  Google Scholar 

  14. G. Z. Zang, L. B. Li, H. H. Liu, X. F. Wang, Z. G. Gai, J. Alloy Compd. 580 611 (2013).

    Article  CAS  Google Scholar 

Download references

Acknowledgments

The authors thanks to the LMA-IQ for providing the FEG-SEM facilities and the Brazilian research funding agencies CNPq and CEPID/CDMF- FAPESP 2013/07296-2 for providing the financial support of this research project.

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Authors and Affiliations

  1. Instituto de Química -, UNESP, Araraquara, SP, 14.800-900, Brazil

    Glauco M.M.M. Lustosa, Leinig A. Perazolli & Maria A. Zaghete

  2. Centro Universitário de Araraquara -, UNIARA, Araraquara, SP, 14.801-340, Brazil

    João Paulo C. Costa

Authors
  1. Glauco M.M.M. Lustosa
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  2. João Paulo C. Costa
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  3. Leinig A. Perazolli
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  4. Maria A. Zaghete
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Lustosa, G.M., Costa, J.P.C., Perazolli, L.A. et al. Electrical Properties at Grain Boundaries Influenced by Cr3+ Diffusion in SnO2.ZnO.Nb2O5-Films Varistor Prepared by Electrophoresis Deposition. MRS Online Proceedings Library 1675, 197–202 (2014). https://doi.org/10.1557/opl.2014.875

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  • DOI: https://doi.org/10.1557/opl.2014.875

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