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Flexible poly (3,4-ethylenedioxythiophene)-tosylate/SWCNT composite films with ultrahigh electrical conductivities for thermoelectric energy harvesting
Liang, Lirong1; Wang, Xiaodong2; Wang, Miaomiao1; Liu, Zhuoxin2; Chen, Guangming2; Sun, Guoxing1
2021-06-01
Source PublicationComposites Communications
ISSN2452-2139
Volume25Pages:100701
Abstract

Recently, organic conductive polymer/carbon nanoparticle thermoelectric (TE) composites or hybrids have received considerable attention due to their attractive structural and electrical characteristics. Here, flexible films of poly(3,4-ethylenedioxythiophene)-tosylate/acidified-single-walled carbon nanotube (PEDOT-Tos/a-SWCNT) composites with greatly enhanced TE performance are fabricated by combination of chemical oxidative polymerization, acid-treatment of SWCNT and vacuum filtration. A typical layered morphology is observed in the binary composites, where strong π-π interactions between the PEDOT-Tos polymer chains and a-SWCNT contribute to a highly conductive network. Besides, the acid-treatment acts as p-type doping for SWCNT, achieving a high electrical conductivity of 4731.6 ± 42.3 S cm−1 for the PEDOT-Tos/a-SWCNT composite at the a-SWCNT content of 35 wt%. The corresponding power factor is calculated to be 119.4 ± 4.3 μW m−1 K−2, around 108 times of that of the neat PEDOT-Tos. Moreover, a TE module with six PEDOT-Tos/a-SWCNT hybrid legs can generate an output power of 578.9 nW. The present study of the construction of layered conductive network, the employment of Tos as counterions for PEDOT and the acid-treatment for SWCNT promotes the design and fabrication of polymer-based composites for TE applications.

KeywordComposite Film Electrical Conductivity Pedot-tos Single-walled Carbon Nanotubes Thermoelectric
DOI10.1016/j.coco.2021.100701
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Composites
WOS IDWOS:000663431500009
PublisherELSEVIER SCI LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
The Source to ArticlePB_Publication
Scopus ID2-s2.0-85102016285
Fulltext Access
Citation statistics
Document TypeJournal article
CollectionINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding AuthorLiu, Zhuoxin; Chen, Guangming; Sun, Guoxing
Affiliation1.Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, SAR, Macau, China
2.College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518055
First Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Recommended Citation
GB/T 7714
Liang, Lirong,Wang, Xiaodong,Wang, Miaomiao,et al. Flexible poly (3,4-ethylenedioxythiophene)-tosylate/SWCNT composite films with ultrahigh electrical conductivities for thermoelectric energy harvesting[J]. Composites Communications, 2021, 25, 100701.
APA Liang, Lirong., Wang, Xiaodong., Wang, Miaomiao., Liu, Zhuoxin., Chen, Guangming., & Sun, Guoxing (2021). Flexible poly (3,4-ethylenedioxythiophene)-tosylate/SWCNT composite films with ultrahigh electrical conductivities for thermoelectric energy harvesting. Composites Communications, 25, 100701.
MLA Liang, Lirong,et al."Flexible poly (3,4-ethylenedioxythiophene)-tosylate/SWCNT composite films with ultrahigh electrical conductivities for thermoelectric energy harvesting".Composites Communications 25(2021):100701.
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