Elsevier

Materials Research Bulletin

Volume 32, Issue 2, February 1997, Pages 239-247
Materials Research Bulletin

Synthesis of ZnO nanoparticles for varistor application using Zn-substituted aerosol ot microemulsion

https://doi.org/10.1016/S0025-5408(96)00175-4Get rights and content

Abstract

This paper describes a new method for the synthesis of zinc oxide nanoparticles using ethanol-in-oil microemulsions with Zn-DEHSS (diethylhexyl sulfosuccinate) as surfactant. The zinc oxide nanoparticles find application in varistors and other functional devices. These particles have been characterized by X-ray diffraction, TEM, and BET surface area. Microemulsion droplets were characterized by quasi elastic light scattering (QELS). Varistors formed from doped zinc oxide nanoparticles finds application as low voltage surge devices with low leakage current and high coefficient of nonlinearity (α). In this paper, we have shown that the critical voltage of the varistor is related to the grain size which is related to size of ZnO particles. The smaller ZnO particles lead to larger grain size, thereby lowering the critical voltage.

References (28)

  • R.P. Andres et al.

    J. Mater. Res.

    (1989)
  • L.M. Levinson et al.

    J. Appl. Phys.

    (1975)
  • M. Matsuoka

    Jpn. J. Appl. Phys.

    (1971)
  • G. Hohenberger et al.

    J. Mat. Res.

    (1992)
  • O. Milosevic et al.

    Mat. Sc. & Engg. A.

    (1993)
  • O. Milosevic et al.

    J. Mat. Sc.

    (1993)
  • E. Sonder et al.

    Am. Ceram. Soc. Bull.

    (1985)
  • K. Kamata et al.

    Chemistry Letts

    (1984)
  • S.M. Haile et al.

    J. Am. Ceram. Soc.

    (1989)
  • R. Leung et al.
  • V. Chhabra, M.L. Free, P.K. Kang, S.E. Truesdail, D.O. Shah, submitted to World Congress, Barcelona...
  • A. Kumar et al.

    J. Phys. Chem.

    (1989)
  • P. Lianos et al.

    Chem. Phys. Letts.

    (1986)
  • J.H. Fendler

    Chem. Rev.

    (1987)
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