Synthesis of ZnO Bicrystals Doped with Co or Mn and Their Electrical Properties
- 1 September 1999
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 38 (9R) , 5028
- https://doi.org/10.1143/jjap.38.5028
Abstract
Bicrystals of ZnO without intergranular additives were synthesized to elucidate the effect of Co and Mn doping on the varistor properties of ZnO ceramics. Nonlinear current-voltage (I–V) characteristics due to the formation of an interfacial barrier were observed in bicrystals doped with Co or Mn, while the nondoped bicrystals exhibited linear I–V relationship. Since the charge transport properties of bulk ZnO crystals were not changed, it is indicated that the energy dispersion and/or density of the interfacial states were changed by the Co and Mn doping.Keywords
This publication has 12 references indexed in Scilit:
- Auger Electron Spectra of Praseodymium- and Cobalt-Doped ZnO VaristorJournal of the Ceramic Society of Japan, 1998
- Fabrication of Thin-Film Varistors Using Sputtering TechniqueJournal of the Ceramic Society of Japan, 1994
- Chemical State Analysis of Grain Boundaries in ZnO Varistors by Auger Electron SpectroscopyJournal of Solid State Chemistry, 1993
- Relationship between Degradation Phenomenon and Trap Centers in ZnO VaristorJournal of the Ceramic Society of Japan, 1989
- Carrier transport through grain boundaries in semiconductorsPhysical Review B, 1986
- Isothermal Capacitance Transient Spectroscopy for Determination of Deep Level ParametersJapanese Journal of Applied Physics, 1980
- Non-Ohmic Properties of ZnO-Rare Earth Metal Oxide-Co3O4CeramicsJapanese Journal of Applied Physics, 1977
- Electrical transport properties of Zn doped ZnOJournal of Solid State Chemistry, 1975
- Nonohmic Properties of Zinc Oxide CeramicsJapanese Journal of Applied Physics, 1971
- On the Morphology and Polarity of the ZnO CrystalJapanese Journal of Applied Physics, 1967