Enhancing thermoelectric properties of single-walled carbon nanotubes using halide compounds at room temperature and above

Abstract Carbon nanotubes (CNTs) are materials with exceptional electrical, thermal, mechanical, and optical properties. Ever since it was demonstrated that they also possess interesting thermoelectric properties, they have been considered a promising solution for thermal energy harvesting. In this...

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Autores principales:	Bogumiła Kumanek, Grzegorz Stando, Paweł Stando, Karolina Matuszek, Karolina Z. Milowska, Maciej Krzywiecki, Marta Gryglas-Borysiewicz, Zuzanna Ogorzałek, Mike C. Payne, Douglas MacFarlane, Dawid Janas
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0b3d7bb72f0944799d0aea2c8b3e1cac
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spelling	oai:doaj.org-article:0b3d7bb72f0944799d0aea2c8b3e1cac2021-12-02T18:27:49ZEnhancing thermoelectric properties of single-walled carbon nanotubes using halide compounds at room temperature and above10.1038/s41598-021-88079-w2045-2322https://doaj.org/article/0b3d7bb72f0944799d0aea2c8b3e1cac2021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-88079-whttps://doaj.org/toc/2045-2322Abstract Carbon nanotubes (CNTs) are materials with exceptional electrical, thermal, mechanical, and optical properties. Ever since it was demonstrated that they also possess interesting thermoelectric properties, they have been considered a promising solution for thermal energy harvesting. In this study, we present a simple method to enhance their performance. For this purpose, thin films obtained from high-quality single-walled CNTs (SWCNTs) were doped with a spectrum of inorganic and organic halide compounds. We studied how incorporating various halide species affects the electrical conductivity, the Seebeck coefficient, and the Power Factor. Since thermoelectric devices operate under non-ambient conditions, we also evaluated these materials' performance at elevated temperatures. Our research shows that appropriate dopant selection can result in almost fivefold improvement to the Power Factor compared to the pristine material. We also demonstrate that the chemical potential of the starting CNT network determines its properties, which is important for deciphering the true impact of chemical and physical functionalization of such ensembles.Bogumiła KumanekGrzegorz StandoPaweł StandoKarolina MatuszekKarolina Z. MilowskaMaciej KrzywieckiMarta Gryglas-BorysiewiczZuzanna OgorzałekMike C. PayneDouglas MacFarlaneDawid JanasNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-18 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Bogumiła Kumanek Grzegorz Stando Paweł Stando Karolina Matuszek Karolina Z. Milowska Maciej Krzywiecki Marta Gryglas-Borysiewicz Zuzanna Ogorzałek Mike C. Payne Douglas MacFarlane Dawid Janas Enhancing thermoelectric properties of single-walled carbon nanotubes using halide compounds at room temperature and above
description	Abstract Carbon nanotubes (CNTs) are materials with exceptional electrical, thermal, mechanical, and optical properties. Ever since it was demonstrated that they also possess interesting thermoelectric properties, they have been considered a promising solution for thermal energy harvesting. In this study, we present a simple method to enhance their performance. For this purpose, thin films obtained from high-quality single-walled CNTs (SWCNTs) were doped with a spectrum of inorganic and organic halide compounds. We studied how incorporating various halide species affects the electrical conductivity, the Seebeck coefficient, and the Power Factor. Since thermoelectric devices operate under non-ambient conditions, we also evaluated these materials' performance at elevated temperatures. Our research shows that appropriate dopant selection can result in almost fivefold improvement to the Power Factor compared to the pristine material. We also demonstrate that the chemical potential of the starting CNT network determines its properties, which is important for deciphering the true impact of chemical and physical functionalization of such ensembles.
format	article
author	Bogumiła Kumanek Grzegorz Stando Paweł Stando Karolina Matuszek Karolina Z. Milowska Maciej Krzywiecki Marta Gryglas-Borysiewicz Zuzanna Ogorzałek Mike C. Payne Douglas MacFarlane Dawid Janas
author_facet	Bogumiła Kumanek Grzegorz Stando Paweł Stando Karolina Matuszek Karolina Z. Milowska Maciej Krzywiecki Marta Gryglas-Borysiewicz Zuzanna Ogorzałek Mike C. Payne Douglas MacFarlane Dawid Janas
author_sort	Bogumiła Kumanek
title	Enhancing thermoelectric properties of single-walled carbon nanotubes using halide compounds at room temperature and above
title_short	Enhancing thermoelectric properties of single-walled carbon nanotubes using halide compounds at room temperature and above
title_full	Enhancing thermoelectric properties of single-walled carbon nanotubes using halide compounds at room temperature and above
title_fullStr	Enhancing thermoelectric properties of single-walled carbon nanotubes using halide compounds at room temperature and above
title_full_unstemmed	Enhancing thermoelectric properties of single-walled carbon nanotubes using halide compounds at room temperature and above
title_sort	enhancing thermoelectric properties of single-walled carbon nanotubes using halide compounds at room temperature and above
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/0b3d7bb72f0944799d0aea2c8b3e1cac
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Enhancing thermoelectric properties of single-walled carbon nanotubes using halide compounds at room temperature and above

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