Cargando…

High-Performance n-Type Bi(2)Te(3) Thermoelectric Fibers with Oriented Crystal Nanosheets

High-performance thermoelectric fibers with n-type bismuth telluride (Bi(2)Te(3)) core were prepared by thermal drawing. The nanosheet microstructures of the Bi(2)Te(3) core were tailored by the whole annealing and Bridgman annealing processes, respectively. The influence of the annealing processes...

Descripción completa

Detalles Bibliográficos
Autores principales: Sun, Min, Zhang, Pengyu, Tang, Guowu, Chen, Dongdan, Qian, Qi, Yang, Zhongmin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9861060/
https://www.ncbi.nlm.nih.gov/pubmed/36678079
http://dx.doi.org/10.3390/nano13020326
_version_ 1784874747124776960
author Sun, Min
Zhang, Pengyu
Tang, Guowu
Chen, Dongdan
Qian, Qi
Yang, Zhongmin
author_facet Sun, Min
Zhang, Pengyu
Tang, Guowu
Chen, Dongdan
Qian, Qi
Yang, Zhongmin
author_sort Sun, Min
collection PubMed
description High-performance thermoelectric fibers with n-type bismuth telluride (Bi(2)Te(3)) core were prepared by thermal drawing. The nanosheet microstructures of the Bi(2)Te(3) core were tailored by the whole annealing and Bridgman annealing processes, respectively. The influence of the annealing processes on the microstructure and thermoelectric performance was investigated. As a result of the enhanced crystalline orientation of Bi(2)Te(3) core caused by the above two kinds of annealing processes, both the electrical conductivity and thermal conductivity could be improved. Hence, the thermoelectric performance was enhanced, that is, the optimized dimensionless figure of merit (ZT) after the Bridgman annealing processes increased from 0.48 to about 1 at room temperature.
format Online
Article
Text
id pubmed-9861060
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-98610602023-01-22 High-Performance n-Type Bi(2)Te(3) Thermoelectric Fibers with Oriented Crystal Nanosheets Sun, Min Zhang, Pengyu Tang, Guowu Chen, Dongdan Qian, Qi Yang, Zhongmin Nanomaterials (Basel) Communication High-performance thermoelectric fibers with n-type bismuth telluride (Bi(2)Te(3)) core were prepared by thermal drawing. The nanosheet microstructures of the Bi(2)Te(3) core were tailored by the whole annealing and Bridgman annealing processes, respectively. The influence of the annealing processes on the microstructure and thermoelectric performance was investigated. As a result of the enhanced crystalline orientation of Bi(2)Te(3) core caused by the above two kinds of annealing processes, both the electrical conductivity and thermal conductivity could be improved. Hence, the thermoelectric performance was enhanced, that is, the optimized dimensionless figure of merit (ZT) after the Bridgman annealing processes increased from 0.48 to about 1 at room temperature. MDPI 2023-01-12 /pmc/articles/PMC9861060/ /pubmed/36678079 http://dx.doi.org/10.3390/nano13020326 Text en © 2023 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
Tang, Guowu
Chen, Dongdan
Qian, Qi
Yang, Zhongmin
High-Performance n-Type Bi(2)Te(3) Thermoelectric Fibers with Oriented Crystal Nanosheets
title High-Performance n-Type Bi(2)Te(3) Thermoelectric Fibers with Oriented Crystal Nanosheets
title_full High-Performance n-Type Bi(2)Te(3) Thermoelectric Fibers with Oriented Crystal Nanosheets
title_fullStr High-Performance n-Type Bi(2)Te(3) Thermoelectric Fibers with Oriented Crystal Nanosheets
title_full_unstemmed High-Performance n-Type Bi(2)Te(3) Thermoelectric Fibers with Oriented Crystal Nanosheets
title_short High-Performance n-Type Bi(2)Te(3) Thermoelectric Fibers with Oriented Crystal Nanosheets
title_sort high-performance n-type bi(2)te(3) thermoelectric fibers with oriented crystal nanosheets
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9861060/
https://www.ncbi.nlm.nih.gov/pubmed/36678079
http://dx.doi.org/10.3390/nano13020326
work_keys_str_mv AT sunmin highperformancentypebi2te3thermoelectricfiberswithorientedcrystalnanosheets
AT zhangpengyu highperformancentypebi2te3thermoelectricfiberswithorientedcrystalnanosheets
AT tangguowu highperformancentypebi2te3thermoelectricfiberswithorientedcrystalnanosheets
AT chendongdan highperformancentypebi2te3thermoelectricfiberswithorientedcrystalnanosheets
AT qianqi highperformancentypebi2te3thermoelectricfiberswithorientedcrystalnanosheets
AT yangzhongmin highperformancentypebi2te3thermoelectricfiberswithorientedcrystalnanosheets