Abstract
A novel ceramic oxide semiconductor Ba 3Ce 3Ti 5Nb 5O 30 was prepared by solid state route. XRD shows that it has tetragonal tungsten bronze-type crystalline structure. The electrical conductivity at 30 °C is 3.49×10 −7 ohm −1 cm −1 and at 600 °C is 1.2×10 −2 ohm −1 cm −1. The activation energy of the carriers has been found to be 0.41 eV Ce +3 and is probably structurally stabilized in this compound.
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