Facile fabrication of one-dimensional Te/Cu(2)Te nanorod composites with improved thermoelectric power factor and low thermal conductivity

In this study, Te/Cu(2)Te nanorod composites were synthesized using various properties of Cu(2)Te, and their thermoelectric properties were investigated. The nanorods were synthesized through a solution phase mixing process, using polyvinylpyrrolidone (PVP). With increasing Cu(2)Te content, the comp...

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Autores principales: Park, Dabin, Ju, Hyun, Oh, Taeseob, Kim, Jooheon
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6305380/
https://www.ncbi.nlm.nih.gov/pubmed/30584252
http://dx.doi.org/10.1038/s41598-018-35713-9
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author Park, Dabin
Ju, Hyun
Oh, Taeseob
Kim, Jooheon
author_facet Park, Dabin
Ju, Hyun
Oh, Taeseob
Kim, Jooheon
author_sort Park, Dabin
collection PubMed
description In this study, Te/Cu(2)Te nanorod composites were synthesized using various properties of Cu(2)Te, and their thermoelectric properties were investigated. The nanorods were synthesized through a solution phase mixing process, using polyvinylpyrrolidone (PVP). With increasing Cu(2)Te content, the composites exhibited a reduced Seebeck coefficient and enhanced electrical conductivity. These characteristic changes were due to the high electrical conductivity and low Seebeck coefficient of Cu(2)Te. The composite containing 30 wt.% of Cu(2)Te nanorods showed the maximum power factor (524.6 μV/K at room temperature). The two types of nanorods were assembled into a 1D nanostructure, and with this structure, thermal conductivity decreased owing to the strong phonon scattering effect. This nanorod composite had a dramatically improved ZT value of 0.3, which was ~545 times larger than that of pristine Te nanorods.
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spelling pubmed-63053802018-12-31 Facile fabrication of one-dimensional Te/Cu(2)Te nanorod composites with improved thermoelectric power factor and low thermal conductivity Park, Dabin Ju, Hyun Oh, Taeseob Kim, Jooheon Sci Rep Article In this study, Te/Cu(2)Te nanorod composites were synthesized using various properties of Cu(2)Te, and their thermoelectric properties were investigated. The nanorods were synthesized through a solution phase mixing process, using polyvinylpyrrolidone (PVP). With increasing Cu(2)Te content, the composites exhibited a reduced Seebeck coefficient and enhanced electrical conductivity. These characteristic changes were due to the high electrical conductivity and low Seebeck coefficient of Cu(2)Te. The composite containing 30 wt.% of Cu(2)Te nanorods showed the maximum power factor (524.6 μV/K at room temperature). The two types of nanorods were assembled into a 1D nanostructure, and with this structure, thermal conductivity decreased owing to the strong phonon scattering effect. This nanorod composite had a dramatically improved ZT value of 0.3, which was ~545 times larger than that of pristine Te nanorods. Nature Publishing Group UK 2018-12-24 /pmc/articles/PMC6305380/ /pubmed/30584252 http://dx.doi.org/10.1038/s41598-018-35713-9 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Park, Dabin
Ju, Hyun
Oh, Taeseob
Kim, Jooheon
Facile fabrication of one-dimensional Te/Cu(2)Te nanorod composites with improved thermoelectric power factor and low thermal conductivity
title Facile fabrication of one-dimensional Te/Cu(2)Te nanorod composites with improved thermoelectric power factor and low thermal conductivity
title_full Facile fabrication of one-dimensional Te/Cu(2)Te nanorod composites with improved thermoelectric power factor and low thermal conductivity
title_fullStr Facile fabrication of one-dimensional Te/Cu(2)Te nanorod composites with improved thermoelectric power factor and low thermal conductivity
title_full_unstemmed Facile fabrication of one-dimensional Te/Cu(2)Te nanorod composites with improved thermoelectric power factor and low thermal conductivity
title_short Facile fabrication of one-dimensional Te/Cu(2)Te nanorod composites with improved thermoelectric power factor and low thermal conductivity
title_sort facile fabrication of one-dimensional te/cu(2)te nanorod composites with improved thermoelectric power factor and low thermal conductivity
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6305380/
https://www.ncbi.nlm.nih.gov/pubmed/30584252
http://dx.doi.org/10.1038/s41598-018-35713-9
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AT ohtaeseob facilefabricationofonedimensionaltecu2tenanorodcompositeswithimprovedthermoelectricpowerfactorandlowthermalconductivity
AT kimjooheon facilefabricationofonedimensionaltecu2tenanorodcompositeswithimprovedthermoelectricpowerfactorandlowthermalconductivity

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