ELECTRONIC AND THERMOELECTRIC PROPERTIES OF PURE AND ALLOYS In2O3 TRANSPARENT CONDUCTORS

Abstract

Electronic and thermoelectric properties of pure In 2 O 3 and In 1.5 T 0.5 O 3 ( T = Sc , Y ) alloys including the band gap, the electrical and thermal conductivity, Seebeck coefficient and figure of merit have been investigated using semi-classical Boltzmann transport theory. The calculated results indicated that substituting indium atoms by these dopants have a significant influence on the electronic properties of alloyed In 2 O 3 crystals. Substitution of Sc and Y atoms for In atoms increases the band gaps and Seebeck coefficient. The intrinsic relations between electronic structures and the transport performances of In 2 O 3 and its alloys with Sc and Y are also discussed.