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Thickness-dependent thermoelectric power factor of polymer-functionalized semiconducting carbon nanotube thin films.

ABSTRACT: The effects of polymer structures on the thermoelectric properties of polymer-wrapped semiconducting carbon nanotubes have yet to be clarified for elucidating intrinsic transport properties. We systematically investigate thickness dependence of thermoelectric transport in thin films containing networks of conjugated polymer-wrapped semiconducting carbon nanotubes. Well-controlled doping experiments suggest that the doping homogeneity and then in-plane electrical conductivity significantly depend on film thickness and polymer species. This understanding leads to achieving thermoelectric power factors as high as 412 ?W m-1 K-2 in thin carbon nanotube films. This work presents a standard platform for investigating the thermoelectric properties of nanotubes.

SUBMITTER: Nonoguchi Y

PROVIDER: S-EPMC6095011 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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Thickness-dependent thermoelectric power factor of polymer-functionalized semiconducting carbon nanotube thin films.

Nonoguchi Yoshiyuki Y Takata Ami A Goto Chigusa C Kitano Takuya T Kawai Tsuyoshi T

Science and technology of advanced materials 20180813 1

The effects of polymer structures on the thermoelectric properties of polymer-wrapped semiconducting carbon nanotubes have yet to be clarified for elucidating intrinsic transport properties. We systematically investigate thickness dependence of thermoelectric transport in thin films containing networks of conjugated polymer-wrapped semiconducting carbon nanotubes. Well-controlled doping experiments suggest that the doping homogeneity and then in-plane electrical conductivity significantly depend ...[more]

PMID: 30128056

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