Anisotropic Effects on the Thermoelectric Properties of Highly Oriented Electrodeposited Bi2Te3 Films

• Published in: Scientific reports Vol. 6; no. 1; p. 19129
• Main Authors: Manzano, Cristina V., Abad, Begoña, Muñoz Rojo, Miguel, Koh, Yee Rui, Hodson, Stephen L., Lopez Martinez, Antonio M., Xu, Xianfan, Shakouri, Ali, Sands, Timothy D., Borca-Tasciuc, Theodorian, Martin-Gonzalez, Marisol
• Format: Journal Article Publication
• Language: English
• Published: London Nature Publishing Group UK 18.01.2016; Nature Publishing Group; Macmillan Publishers
• Subjects: 142/126; 639/301/299/2736; 639/925; Alternative energy; Calor; Conducció; Conductivity; Crystal structure; Electrical conductivity; Energies; Heat conductivity; Humanities and Social Sciences; In-plane power factor; Morphology; multidisciplinary; Power factor; Science; Seebeck coefficient; Termoelectricitat; Termoenergètica; Thermal conductivity; Thermal electromotive force; Thermoelectric materials; Thermoelectricity; Àrees temàtiques de la UPC
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/srep19129

Highly oriented [1 1 0] Bi 2 Te 3 films were obtained by pulsed electrodeposition. The structure, composition and morphology of these films were characterized. The thermoelectric figure of merit (zT), both parallel and perpendicular to the substrate surface, were determined by measuring the Seebeck coefficient, electrical conductivity and thermal conductivity in each direction. At 300 K, the in-plane and out-of-plane figure of merits of these Bi 2 Te 3 films were (5.6 ± 1.2)·10 −2 and (10.4 ± 2.6)·10 −2 , respectively.