Thermoelectric properties of ZnO-based oxide synthesized in liquid phase.

Abstract

Rod-like Al-doped ZnO particles (Al/Zn = 0 and 2.0 mol%) were prepared by hydrothermal method. The electrical conductivities of the sintered pellets prepared from the rod-like Al-doped ZnO, rod-like ZnO, and commercial ZnO powders were investigated. The electrical conductivities of Al-doped ZnO sample was the highest in the samples. It was suggested that the sintered Al-doped ZnO pellets possessed preferred orientation, resulting in the increase of the electrical conductivity.