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Heat and charge carrier flow through single-walled carbon nanotube films in vertical electrolyte-gated transistors: implications for thermoelectric energy conversion

Understanding the relationship between electrical and thermal characteristics of thin films is crucial for their thermal management. However, there are hardly any reliable experimental data on this relationship because measurement methods that can evaluate both characteristics in the same direction a...

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Hauptverfasser: Ueji, Kan (VerfasserIn) , Muto, Nobuhiro (VerfasserIn) , Heimfarth, Daniel (VerfasserIn) , Matsuoka, Yuya (VerfasserIn) , Ichinose, Yota (VerfasserIn) , Yomogida, Yohei (VerfasserIn) , Yagi, Takashi (VerfasserIn) , Zaumseil, Jana (VerfasserIn) , Yanagi, Kazuhiro (VerfasserIn)
Dokumenttyp: Article (Journal) Editorial
Sprache:Englisch
Veröffentlicht: April 26, 2022
In: ACS applied nano materials
Year: 2022, Jahrgang: 5, Heft: 5, Pages: 6100-6105
ISSN:2574-0970
DOI:10.1021/acsanm.2c01687
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1021/acsanm.2c01687
Verlag, lizenzpflichtig, Volltext: https://pubs.acs.org/doi/10.1021/acsanm.2c01687
Volltext
Verfasserangaben:Kan Ueji, Nobuhiro Muto, Daniel Heimfarth, Yuya Matsuoka, Yota Ichinose, Yohei Yomogida, Takashi Yagi, Jana Zaumseil, and Kazuhiro Yanagi
Beschreibung
Zusammenfassung:Understanding the relationship between electrical and thermal characteristics of thin films is crucial for their thermal management. However, there are hardly any reliable experimental data on this relationship because measurement methods that can evaluate both characteristics in the same direction are very limited. Here, we report a measurement technique that can simultaneously evaluate electrical and thermal characteristics by combining time-domain thermoreflectance and vertical electrolyte-gated transistors. We demonstrate that the thermal conductivity of single-walled carbon nanotube films is independent of the vertical current density, which is modulated over 4 orders of magnitude, indicating a route to improve thermoelectric conversion efficiencies.
Beschreibung:Gesehen am 28.08.2022
Beschreibung:Online Resource
ISSN:2574-0970
DOI:10.1021/acsanm.2c01687

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