Synthesis and Evaluation of Thick Films of Electrochemically Deposited Bi(2)Te(3) and Sb(2)Te(3) Thermoelectric Materials

This paper presents the results of the synthesis and evaluation of thick thermoelectric films that may be used for such applications as thermoelectric power generators. Two types of electrochemical deposition methods, constant and pulsed deposition with improved techniques for both N-type bismuth te...

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Autores principales: Trung, Nguyen Huu, Sakamoto, Kei, Toan, Nguyen Van, Ono, Takahito
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5459149/
https://www.ncbi.nlm.nih.gov/pubmed/28772511
http://dx.doi.org/10.3390/ma10020154
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author Trung, Nguyen Huu
Sakamoto, Kei
Toan, Nguyen Van
Ono, Takahito
author_facet Trung, Nguyen Huu
Sakamoto, Kei
Toan, Nguyen Van
Ono, Takahito
author_sort Trung, Nguyen Huu
collection PubMed
description This paper presents the results of the synthesis and evaluation of thick thermoelectric films that may be used for such applications as thermoelectric power generators. Two types of electrochemical deposition methods, constant and pulsed deposition with improved techniques for both N-type bismuth telluride (Bi(2)Te(3)) and P-type antimony telluride (Sb(2)Te(3)), are performed and compared. As a result, highly oriented Bi(2)Te(3) and Sb(2)Te(3) thick films with a bulk-like structure are successfully synthesized with high Seebeck coefficients and low electrical resistivities. Six hundred-micrometer-thick Bi(2)Te(3) and 500-µm-thick Sb(2)Te(3) films are obtained. The Seebeck coefficients for the Bi(2)Te(3) and Sb(2)Te(3) films are −150 ± 20 and 170 ± 20 µV/K, respectively. Additionally, the electrical resistivity for the Bi(2)Te(3) is 15 ± 5 µΩm and is 25 ± 5 µΩm for the Sb(2)Te(3). The power factors of each thermoelectric material can reach 15 × 10(−4) W/mK(2) for Bi(2)Te(3) and 11.2 × 10(−4) W/mK(2) for Sb(2)Te(3).
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spelling pubmed-54591492017-07-28 Synthesis and Evaluation of Thick Films of Electrochemically Deposited Bi(2)Te(3) and Sb(2)Te(3) Thermoelectric Materials Trung, Nguyen Huu Sakamoto, Kei Toan, Nguyen Van Ono, Takahito Materials (Basel) Article This paper presents the results of the synthesis and evaluation of thick thermoelectric films that may be used for such applications as thermoelectric power generators. Two types of electrochemical deposition methods, constant and pulsed deposition with improved techniques for both N-type bismuth telluride (Bi(2)Te(3)) and P-type antimony telluride (Sb(2)Te(3)), are performed and compared. As a result, highly oriented Bi(2)Te(3) and Sb(2)Te(3) thick films with a bulk-like structure are successfully synthesized with high Seebeck coefficients and low electrical resistivities. Six hundred-micrometer-thick Bi(2)Te(3) and 500-µm-thick Sb(2)Te(3) films are obtained. The Seebeck coefficients for the Bi(2)Te(3) and Sb(2)Te(3) films are −150 ± 20 and 170 ± 20 µV/K, respectively. Additionally, the electrical resistivity for the Bi(2)Te(3) is 15 ± 5 µΩm and is 25 ± 5 µΩm for the Sb(2)Te(3). The power factors of each thermoelectric material can reach 15 × 10(−4) W/mK(2) for Bi(2)Te(3) and 11.2 × 10(−4) W/mK(2) for Sb(2)Te(3). MDPI 2017-02-10 /pmc/articles/PMC5459149/ /pubmed/28772511 http://dx.doi.org/10.3390/ma10020154 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Trung, Nguyen Huu
Sakamoto, Kei
Toan, Nguyen Van
Ono, Takahito
Synthesis and Evaluation of Thick Films of Electrochemically Deposited Bi(2)Te(3) and Sb(2)Te(3) Thermoelectric Materials
title Synthesis and Evaluation of Thick Films of Electrochemically Deposited Bi(2)Te(3) and Sb(2)Te(3) Thermoelectric Materials
title_full Synthesis and Evaluation of Thick Films of Electrochemically Deposited Bi(2)Te(3) and Sb(2)Te(3) Thermoelectric Materials
title_fullStr Synthesis and Evaluation of Thick Films of Electrochemically Deposited Bi(2)Te(3) and Sb(2)Te(3) Thermoelectric Materials
title_full_unstemmed Synthesis and Evaluation of Thick Films of Electrochemically Deposited Bi(2)Te(3) and Sb(2)Te(3) Thermoelectric Materials
title_short Synthesis and Evaluation of Thick Films of Electrochemically Deposited Bi(2)Te(3) and Sb(2)Te(3) Thermoelectric Materials
title_sort synthesis and evaluation of thick films of electrochemically deposited bi(2)te(3) and sb(2)te(3) thermoelectric materials
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5459149/
https://www.ncbi.nlm.nih.gov/pubmed/28772511
http://dx.doi.org/10.3390/ma10020154
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