Advanced Thermoelectric Performance of SWCNT Films by Mixing Two Types of SWCNTs with Different Structural and Thermoelectric Properties.

Yutaro Okano, Hisatoshi Yamamoto, Koki Hoshino, Shugo Miyake, Masayuki Takashiri

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Article in Materials (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

5 authors.

Yutaro OkanoDepartment of Materials Science, Tokai University, Hiratsuka 259-1292, Kanagawa, Japan.

Hisatoshi YamamotoDepartment of Materials Science, Tokai University, Hiratsuka 259-1292, Kanagawa, Japan.

Koki HoshinoDepartment of Materials Science, Tokai University, Hiratsuka 259-1292, Kanagawa, Japan.

Shugo MiyakeDepartment of Mechanical Engineering, Setsunan University, Neyagawa 572-8508, Osaka, Japan.ORCID 0009-0003-7564-7810

Masayuki TakashiriDepartment of Materials Science, Tokai University, Hiratsuka 259-1292, Kanagawa, Japan.ORCID 0000-0001-7041-6595

Funding

Hiratsuka City-Industry (Kanto Yakin Kogyo Co., Ltd.)-Academia Joint Research Commercialization Support Grant. No number

6 · The paper itself

Abstract

Semiconducting single-walled carbon nanotubes (SWCNTs) are significantly attractive for thermoelectric generators (TEGs), which convert thermal energy into electricity via the Seebeck effect. This is because the characteristics of semiconducting SWCNTs are perfectly suited for TEGs as self-contained power sources for sensors on the Internet of Things (IoT). However, the thermoelectric performances of the SWCNTs should be further improved by using the power sources. The ideal SWCNTs have a high electrical conductivity and Seebeck coefficient while having a low thermal conductivity, but it is challenging to balance everything. In this study, to improve the thermoelectric performance, we combined two types of SWCNTs: one with a high electrical conductivity (Tuball 01RW03, OCSiAl) and the other with a high Seebeck coefficient and low thermal conductivity (ZEONANO SG101, ZEON). The SWCNT inks were prepared by mixing two types of SWCNTs using ultrasonic dispersion while varying the mixing ratios, and

Indexed as

dimensionless figure-of-meritpower factorSeebeck coefficientSWCNTsthermal conductivitythermoelectric

Identifiers

PMID39795832

DOI10.3390/ma18010188

PMCPMC11721192

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