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Flexible Thermoelectric Polymer Composites Based on a Carbon Nanotubes Forest
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Materialvetenskap. Department of Functional Nanosystems and High-Temperature Materials National University of Science and Technology MISIS Moscow.ORCID-id: 0000-0001-8889-4157
Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Materialvetenskap.ORCID-id: 0000-0001-7475-6394
Prokhorov General Physics Institute of the Russian Academy of Sciences.
Vise andre og tillknytning
2018 (engelsk)Inngår i: Advanced Functional Materials, ISSN 1616-301X, E-ISSN 1616-3028, Vol. 28, nr 40, artikkel-id 1801246Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Polymer-based composites are of high interest in the field of thermoelectric (TE) materials because of their properties: abundance, low thermal conductivity, and nontoxicity. In applications, like TE for wearable energy harvesting, where low operating temperatures are required, polymer composites demonstrate compatible with the targeted specifications. The main challenge is reaching high TE efficiency. Fillers and chemical treatments can be used to enhance TE performance of the polymer matrix. The combined application of vertically aligned carbon nanotubes forest (VA-CNTF) is demonstrated as fillers and chemical post-treatment to obtain high-efficiency TE composites, by dispersing VA-CNTF into a poly (3,4-ethylenedioxythiophene) polystyrene sulfonate matrix. The VA-CNTF keeps the functional properties even in flexible substrates. The morphology, structure, composition, and functional features of the composites are thoroughly investigated. A dramatic increase of power factor is observed at the lowest operating temperature difference ever reported. The highest Seebeck coefficient and electrical conductivity are 58.7 μV K-1 and 1131 S cm-1, respectively. The highest power factor after treatment is twice as high in untreated samples. The results demonstrate the potential for the combined application of VA-CNTF and chemical post-treatment, in boosting the TE properties of composite polymers toward the development of high efficiency, low-temperature, flexible TEs.

sted, utgiver, år, opplag, sider
John Wiley & Sons, 2018. Vol. 28, nr 40, artikkel-id 1801246
Emneord [en]
flexible devices, low‐temperature thermoelectrics, nanocomposites, polymer thermoelectrics, vertically aligned carbon nanotubes forest
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Experimentell fysik
Identifikatorer
URN: urn:nbn:se:ltu:diva-70421DOI: 10.1002/adfm.201801246ISI: 000446155700001Scopus ID: 2-s2.0-85051061872OAI: oai:DiVA.org:ltu-70421DiVA, id: diva2:1239123
Merknad

Validerad;2018;Nivå 2;2018-10-03 (johcin)

Tilgjengelig fra: 2018-08-15 Laget: 2018-08-15 Sist oppdatert: 2021-03-31bibliografisk kontrollert

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Yusupov, KhabibYou, ShujieVomiero, Alberto

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