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Kumanek B, Stando G, Stando P, et al. Enhancing thermoelectric properties of single-walled carbon nanotubes using halide compounds at room temperature and above. Sci Rep. 2021;11(1):8649doi: 10.1038/s41598-021-88079-w.
Kumanek, B., Stando, G., Stando, P., Matuszek, K., Milowska, K. Z., Krzywiecki, M., Gryglas-Borysiewicz, M., Ogorzałek, Z., Payne, M. C., MacFarlane, D., & Janas, D. (2021). Enhancing thermoelectric properties of single-walled carbon nanotubes using halide compounds at room temperature and above. Scientific reports, 11(1), 8649. https://doi.org/10.1038/s41598-021-88079-w
Kumanek, Bogumiła, et al. "Enhancing thermoelectric properties of single-walled carbon nanotubes using halide compounds at room temperature and above." Scientific reports vol. 11,1 (2021): 8649. doi: https://doi.org/10.1038/s41598-021-88079-w
Kumanek B, Stando G, Stando P, Matuszek K, Milowska KZ, Krzywiecki M, Gryglas-Borysiewicz M, Ogorzałek Z, Payne MC, MacFarlane D, Janas D. Enhancing thermoelectric properties of single-walled carbon nanotubes using halide compounds at room temperature and above. Sci Rep. 2021 Apr 21;11(1):8649. doi: 10.1038/s41598-021-88079-w. PMID: 33883634; PMCID: PMC8060344.
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Sci Rep. 2021 Apr 21;11(1):8649. doi: 10.1038/s41598-021-88079-w.

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

Scientific reports

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

Affiliations

  1. Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, B. Krzywoustego 4, 44-100, Gliwice, Poland. [email protected].
  2. Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, B. Krzywoustego 4, 44-100, Gliwice, Poland.
  3. School of Chemistry, Monash University, Clayton, VIC, 3800, Australia.
  4. TCM Group, Cavendish Laboratory, University of Cambridge, 19 JJ Thomson Avenue, Cambridge, CB3 0HE, UK.
  5. Institute of Physics-CSE, Silesian University of Technology, Konarskiego 22B, 44-100, Gliwice, Poland.
  6. Faculty of Physics, University of Warsaw, Pasteura 5, 02-093, Warsaw, Poland.
  7. Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, B. Krzywoustego 4, 44-100, Gliwice, Poland. [email protected].

PMID: 33883634 PMCID: PMC8060344 DOI: 10.1038/s41598-021-88079-w

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.

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