Abstract
In this paper, we reported on a novel, simple, and cost-effective chemical route to fabrication of thermoelectric films, such as Bi, PbTe, and Bi 2Te 3. The films were prepared by spinning coating corresponding metastable precursor solutions, using TeO 2 and/or metallic salt as the starting materials, and KBH 4 as reductant. The phase structure and morphology of the films were characterized by X-ray diffraction and field-emission scanning electron microscopy, respectively. The formation mechanisms of the films were proposed. The electrical conductivity of the films was measured at room temperature.
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