Abstract
Studies have been made of the non-ohmic behaviour of the system ZnO-Nb2O5, as a function of composition, in the range 0.1 to 0.5 wt % of Nb2O5 and sintering temperature varying from 900 to 1300° C. It is found that the non-linearity coefficient α varies with composition and sintering temperature. The maximum value of α(≅ 8) is achieved for the samples containing 0.2 wt% Nb2O5, sintered at 1100°C. These results are interpreted in terms of the variation of barrier height with composition.
Similar content being viewed by others
References
M. Matsuoka,Jpn. J. Appl. Phys. 10 (1971) 736.
S. Ivanov, L. P. Bonchev, L. St. Rutkova andEk. D. Dubreva,Godishnik Mashino — Electrotechn. Inst. 14 (1963) 451.
K. Eda, “Grain boundaries in semiconductors”, (Elsevier, New York, 1982) p. 381.
E. C. Sakshaug, J. S. Kresge andS. A. Miske,IEEE Trans. PAS-96 2 (1977) 647.
G. D. Mahan, L. M. Levinson andH. R. Philipp,J. Appl. Phys. 50 (1979) 2799.
L. M. Levinson andH. R. Philipp,J. Appl. Phys. 46 (1975) 1332.
P. H. Miller,Phys. Rev. 60 (1941) 890.
R. W. Harrison andE. J. Delgrosso,J. Electrochem. Soc 110 (1963) 205.
K. Eda,J. Appl. Phys. 49 (1978) 2964.
G. D. Mahan, “Grain boundaries in semiconductors”, (Elsevier, New York, 1982) p. 333.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Asokan, T., Iyengar, G.N.K. & Nagabhushana, G.R. Non-ohmic behaviour of the binary ZnO-Nb2O5 system. J Mater Sci 22, 1019–1023 (1987). https://doi.org/10.1007/BF01103545
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01103545