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PEDOT:Tos electronic and thermoelectric properties: lessons from two polymerization processes

hal.structure.identifierTeam 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
dc.contributor.authorPERROT, Solène
hal.structure.identifierTeam 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
dc.contributor.authorPAWULA, Florent
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorPÉCHEV, Stanislav
hal.structure.identifierTeam 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
dc.contributor.authorHADZIIOANNOU, Georges
hal.structure.identifierTeam 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
dc.contributor.authorFLEURY, Guillaume
dc.date.issued2021
dc.identifier.issn2050-7526
dc.description.abstractEnIn the landscape of π-conjugated polymers, poly(3,4-ethylenedioxythiophene) doped with iron(III) p-toluenesulfonate (PEDOT:Tos) has shown promise as a thermoelectric material for near room temperature applications. Such properties are inherent to its semi-metallic nature when optimally doped leading to high electrical conductivity and a relatively good Seebeck coefficient. Nevertheless, the final thermoelectric properties of PEDOT:Tos are highly influenced by the polymerization pathways and a thorough understanding of the interplay between polymerization processes and thermoelectric properties is needed. Here, PEDOT:Tos thin films with a doping level of 22 ± 2% were produced by in situ polymerization and vapor-phase polymerization and a comparative study was performed in order to investigate the subtle correlations between morphological features and electronic signatures for both types of samples. Accordingly, optimized in situ polymerized PEDOT:Tos films were demonstrated to exhibit higher electrical conductivities (up to 4398 ± 68 S cm−1) and power factors (up to 148 ± 37 μW m−1 K−2), highlighting the importance of the polymerization process on the final thermoelectric properties.
dc.description.sponsorshipAdvanced Materials by Design - ANR-10-LABX-0042
dc.description.sponsorship“Plate-forme de l'Université de Bordeaux pour l'organique électronique imprimable : de la molécule aux dispositifs et systèmes intégrés - valorisation et commercialisation” - ANR-10-EQPX-0028
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.title.enPEDOT:Tos electronic and thermoelectric properties: lessons from two polymerization processes
dc.typeArticle de revue
dc.identifier.doi10.1039/D1TC00756D
dc.subject.halChimie/Polymères
bordeaux.journalJournal of Materials Chemistry C
bordeaux.page7417-7425
bordeaux.volume9
bordeaux.issue23
bordeaux.peerReviewedoui
hal.identifierhal-03737492
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03737492v1
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