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Digitale Medien

Barrier voltage deformation of ZnO varistors by current pulse (1992)

Leite, E. R. ; Varela, J. A. ; Longo, E.

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 72 (1992), S. 147-150

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Details

ISSN: 1089-7550

Quelle: AIP Digital Archive

Thema: Physik

Notizen: The phenomenon of electrical degradation in ZnO varistors was studied by application of high-intensity current pulses. A wave shape of 8×20 μs and rectangular waves of 1 and 2 ms were used. The degradation was estimated by reference electric-field variation and by Schottky voltage barrier deformation. The results showed that current pulses reduce both the height and the width of the barrier voltage. It was also observed that the donor density Nd did not change but the surface states density Ns decreased with degradation.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.352175

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