Abstract:
There is considerable interest in the electrical transport in two-phase systems because of their possible technological applications. This paper describes the recent data obtained on the effect of different types of dispersoids on two types of matrixes, viz, NiO, a predominantly p-type semiconductor and AgI, a predominantly ionic conductor. It has been shown that the total electrical conductivities of these composites depend strongly on the nature of the dispersoid as well as the matrix. In both the cases, however, an interfacial region has been shown to play a significant role. © 1986 Indian Academy of Sciences.