Sesquioxides electrical properties

Bak T., Nowotny J., Rekas M., Sorrell C.C., Banda P.A., Wlodarski W. Electrical conductivity of indium sesquioxide thin film. J. Mato". Sci.—-Mater. Electronics 2002 13 571-579 Bandyopadhyay S., Paul G.K., Roy R, Sen S.K., Sen S. Study of structural and electrical properties of grain-boundary modified ZnO films prepared by sol-gel technique. Mater. Chem. Phys. 2002 74 83-91... 

The electrical properties of the rare earth sesquioxides were studied and the earlier literature commented on by Subba Rao et al. (1970). The results of these and other studies (as noted) are given in table 27.9. The conductivities of these sesquioxides decrease with increasing Z except that Y2O3 falls between H02O3 and Yb203. 

Of the sesquioxides perhaps least is known about Ce203. Unless it is completely stoichiometric (and A-form) it can be pyrophoric hence preparation and protection from oxygen during study requires serious attention. Sata and Yoshimura (1968a, b) have prepared this material and have studied its chemical and physical properties including its melting point, thermal expansion, and electrical and magnetic properties. 

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