In:
Journal of Applied Physics, AIP Publishing, Vol. 51, No. 8 ( 1980-08-01), p. 4240-4244
Abstract:
The thermionic emission enhanced by barrier lowering and the Zener tunnelling in ZnO varistors are discussed. Capacitance versus voltage, reverse current versus temperature, and 1/f noise measurements have been performed on commercial varistors. A model is proposed from which follows a diffusion voltage VD which is consistent both with the 1/C2 vs V plot and with the thermal activation energy obtained from the reverse current versus 1/T. The empirical law β=d log V/dlog I= constant, is explained by Zener breakdown. The 1/f current noise is proportional to the square of the current and independent of the conduction mechanism across reversely biased barriers.
Type of Medium:
Online Resource
ISSN:
0021-8979
,
1089-7550
Language:
English
Publisher:
AIP Publishing
Publication Date:
1980
detail.hit.zdb_id:
220641-9
detail.hit.zdb_id:
3112-4
detail.hit.zdb_id:
1476463-5
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