Anisotropy measurements of a cuboid of nanostructured hydrothermally prepared Bi_0.45Sb_1.55Te₃

Category: Transient Plane Source

Author(s): Ankam Bhaskar, Chia-Jyi Liu, Hsin -Chang Lai, Yen-Liang Liu

Keywords: bi0.45sb1.55te3, electrical conductivity, electron microscopy, sintering, thermal conductivity, transient plane source (tps) technique, x-ray method

Abstract: Thermoelectric materials can be used to convert waste heat, such as solar energy and automobile exhaust, to electricity. A Bi_0.45Sb_1.55Te₃ p-type cuboid was created using hydrothermal synthesis, cold pressing, and evacuated-and-encapsulated sintering in a Pyrex ampoule. The figure of merit (z) was determined by finding three transport parameters: electrical conductivity, thermopower, and thermal conductivity. The thermal conductivity measurements on the three (A, B, and C) faces of the cuboid were completed using the transient plane source (TPS) technique with a thermal constants analyzer.

Reference: Ceramics International (2017), 43:17142-17147

DOI: 10.1016/j.ceramint.2017.09.135

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