Skip to main content
SpringerLink
Log in

The effect of Cr2O3 additive on the electrical properties of ZnO varistor

  • Published:
Journal of Materials Science Aims and scope Submit manuscript

Abstract

The effect of Cr2O3 additive on the leakage conduction and threshold voltage characteristics of bismuth-based ZnO ceramic varistor was studied. The leakage conduction in the voltage range below the threshold voltage increased with increasing Cr2O3 concentration and is attributed to the Schottky barrier height. It was found that the increases in the apparent threshold voltage were associated with the lowered donor concentration in the depletion region of the ZnO grain. These results were obtained by measuring C–V characteristics, the breakdown voltage at the current density of 10-3 A cm-2 and the microstructure of ZnO ceramics.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Y. C. CHEN and C. Y. SHEN,J. Appl. Phys. 69 (1991) 8363.

    Article  CAS  Google Scholar 

  2. K. EDA,J. Appl. Phys. 50 (1979) 4436.

    Article  CAS  Google Scholar 

  3. D. R. CLARKE,ibid. 50 (1979) 6829.

    Article  CAS  Google Scholar 

  4. J. WONG,ibid. 46 (1975) 1653.

    Article  CAS  Google Scholar 

  5. H. CERVA and W. RUSSWURM,J. Am. Ceram. Soc. 71 (1988) 522.

    Article  CAS  Google Scholar 

  6. B. S. CHIOU and W. JIH,Br. Ceram. Trans. J. 85 (1986) 118.

    CAS  Google Scholar 

  7. E. D. KIM and C. H. KIM,J. Appl. Phys. 58 (1985) 3231.

    Article  CAS  Google Scholar 

  8. U. SCHWING and B. HOFFMANN,ibid. 57 (1958) 5372.

    Article  Google Scholar 

  9. M. MATSUOKA,Jpn J. Appl. Phys. 10 (1971) 736.

    Article  CAS  Google Scholar 

  10. M. INADA,ibid. 17 (1978) 673.

    Article  CAS  Google Scholar 

  11. K. EDA, A. IGA and M. MATSUOKA,J. Appl. Phys. 51 (1980) 2678.

    Article  CAS  Google Scholar 

  12. G. D. MAHAN, L. M. LEVINSON and H. R. PHILIPP,ibid. 50 (1979) 2799.

    Article  CAS  Google Scholar 

  13. P. L. HOWER and T. K. GUPTA,ibid. 50 (1979) 4847.

    Article  CAS  Google Scholar 

  14. K. HAUFFE,Z. Phys. Chem. 196 (1950) 160.

    Google Scholar 

  15. Y. SHIN and J. F. CORDARO,J. Appl. Phys. 64 (1988) 3994.

    Article  Google Scholar 

  16. L. M. LEVINSON and H. R. PHILIPP,Ceram. Bull. 65 (1986) 639.

    CAS  Google Scholar 

  17. E. OLSSON and G. L. DUNLOP,J. Appl. Phys. 66 (1989) 3666.

    Article  CAS  Google Scholar 

  18. P. R. EMTAGE,ibid. 50 (1979) 6833.

    Article  CAS  Google Scholar 

  19. K. MUKAE and I. NAGASAWA,Adv. Ceram. 1 (1981) 331.

    CAS  Google Scholar 

  20. K. TSUDA, K. MUKAE and I. NAGASAWA,J. Appl. Phys. 50 (1979) 4475.

    Article  Google Scholar 

  21. W. G. MORRIS,J. Vac. Sci. Technol. 13 (1976) 926.

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Electrical Engineering, Kyung Won College, Sungnam-shi Kyunggi-do, Korea

    YONG HYUK KIM

  2. Department of Electrical and Electronic Engineering, Meijo University, Tempaku-ku Nagoya, 468, Japan

    H KAWAMURA & M NAWATA

Authors
  1. YONG HYUK KIM
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. H KAWAMURA
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. M NAWATA
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

KIM, Y.H., KAWAMURA, H. & NAWATA, M. The effect of Cr2O3 additive on the electrical properties of ZnO varistor. Journal of Materials Science 32, 1665–1670 (1997). https://doi.org/10.1023/A:1018559529709

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1018559529709

Keywords

Search

Navigation