Enhanced N-Type Bismuth-Telluride-Based Thermoelectric Fibers via Thermal Drawing and Bridgman Annealing

N-type bismuth telluride (Bi(2)Te(3)) based thermoelectric (TE) fibers were fabricated by thermal drawing and Bridgman annealing, and the influence of Bridgman annealing on the TE properties of n-type Bi(2)Te(3)-based TE fibers was studied. The Bridgman annealing enhanced the electrical conductivity...

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Detalles Bibliográficos
Autores principales: Sun, Min, Zhang, Pengyu, Li, Qingmin, Tang, Guowu, Zhang, Ting, Chen, Dongdan, Qian, Qi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9369927/
https://www.ncbi.nlm.nih.gov/pubmed/35955267
http://dx.doi.org/10.3390/ma15155331
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author Sun, Min
Zhang, Pengyu
Li, Qingmin
Tang, Guowu
Zhang, Ting
Chen, Dongdan
Qian, Qi
author_facet Sun, Min
Zhang, Pengyu
Li, Qingmin
Tang, Guowu
Zhang, Ting
Chen, Dongdan
Qian, Qi
author_sort Sun, Min
collection PubMed
description N-type bismuth telluride (Bi(2)Te(3)) based thermoelectric (TE) fibers were fabricated by thermal drawing and Bridgman annealing, and the influence of Bridgman annealing on the TE properties of n-type Bi(2)Te(3)-based TE fibers was studied. The Bridgman annealing enhanced the electrical conductivity and Seebeck coefficient because of increasing crystalline orientation and decreasing detrimental elemental enrichment. The TE performance of n-type Bi(2)Te(3)-based TE fibers was improved significantly by enhancing the power factor. Hence the power factor increased from 0.14 to 0.93 mW/mK(2), and the figure-of-merit value is from 0.11 to 0.43 at ~300 K, respectively.
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spelling pubmed-93699272022-08-12 Enhanced N-Type Bismuth-Telluride-Based Thermoelectric Fibers via Thermal Drawing and Bridgman Annealing Sun, Min Zhang, Pengyu Li, Qingmin Tang, Guowu Zhang, Ting Chen, Dongdan Qian, Qi Materials (Basel) Communication N-type bismuth telluride (Bi(2)Te(3)) based thermoelectric (TE) fibers were fabricated by thermal drawing and Bridgman annealing, and the influence of Bridgman annealing on the TE properties of n-type Bi(2)Te(3)-based TE fibers was studied. The Bridgman annealing enhanced the electrical conductivity and Seebeck coefficient because of increasing crystalline orientation and decreasing detrimental elemental enrichment. The TE performance of n-type Bi(2)Te(3)-based TE fibers was improved significantly by enhancing the power factor. Hence the power factor increased from 0.14 to 0.93 mW/mK(2), and the figure-of-merit value is from 0.11 to 0.43 at ~300 K, respectively. MDPI 2022-08-03 /pmc/articles/PMC9369927/ /pubmed/35955267 http://dx.doi.org/10.3390/ma15155331 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Communication
Sun, Min
Zhang, Pengyu
Li, Qingmin
Tang, Guowu
Zhang, Ting
Chen, Dongdan
Qian, Qi
Enhanced N-Type Bismuth-Telluride-Based Thermoelectric Fibers via Thermal Drawing and Bridgman Annealing
title Enhanced N-Type Bismuth-Telluride-Based Thermoelectric Fibers via Thermal Drawing and Bridgman Annealing
title_full Enhanced N-Type Bismuth-Telluride-Based Thermoelectric Fibers via Thermal Drawing and Bridgman Annealing
title_fullStr Enhanced N-Type Bismuth-Telluride-Based Thermoelectric Fibers via Thermal Drawing and Bridgman Annealing
title_full_unstemmed Enhanced N-Type Bismuth-Telluride-Based Thermoelectric Fibers via Thermal Drawing and Bridgman Annealing
title_short Enhanced N-Type Bismuth-Telluride-Based Thermoelectric Fibers via Thermal Drawing and Bridgman Annealing
title_sort enhanced n-type bismuth-telluride-based thermoelectric fibers via thermal drawing and bridgman annealing
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9369927/
https://www.ncbi.nlm.nih.gov/pubmed/35955267
http://dx.doi.org/10.3390/ma15155331
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