Abstract
The n-type semiconductivity of In 2O 3 is confirmed by the sign of the Seebeck coefficient. From a comparison of Hall and Seebeck data a value of 0.14 m o is deduced for the density-of-states effective mass. The incorporation of divalent cations results in a higher absolute value of the Seebeck coefficient, which is reflected in the lower charge carrier concentration, in accordance qualitatively with the defect model for In 2O 3.
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