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Tuning the rheology of polymer conducting inks for various deposition processes

hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorGLASSER, Alizée
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
dc.contributor.authorCLOUTET, Eric
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
dc.contributor.authorHADZIIOANNOU, Georges
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorKELLAY, Hamid
dc.date.issued2019-06-28
dc.identifier.issn0897-4756
dc.description.abstractEnOrganic semi-conducting polymers are attractive for their competitive price and their low processability requirements. Aqueous solutions of these polymers can be deposited with a variety of processes to make thin, flexible and transparent films. Such films can be used as transparent electrodes in organic light emitting diodes or organic photovoltaic cells. Poly(3,4-ethylene dioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is the only PEDOT:polyanion commercially available. However, other counterions such as poly(4-styrene trifluo-romethyl(bissulfonylimide)) (PSTFSI) have been shown to stabilize PEDOT and give comparable conductive properties and transparency to the films. We show that the rheological properties of these two aqueous systems are especially different. For example PEDOT:PSTFSI inks can form a physical gel even at low concentrations, making it attractive for processing purposes while PEDOT:PSS shows only minor shear thinning behavior for concentrations as high as 1 %wt. This difference in behavior is due to structural differences between the polyanions: PSTFSI favors hydrogen bonding while PSS does not. Here, we present a systematic study of the rheological properties and the film properties of PEDOT:PSTFSI inks for different concentrations and using various deposition processes such as doctor blade, screen-printing, inkjet, and soft blade deposition. We show that such inks can be adapted to each of these processes by simply tuning the concentration, making their formulation simple while keeping comparable optoelectronic properties as commercial inks.
dc.description.sponsorshipAssemblage Hiérarchique de Matériaux Organiques pour l'Electronique - ANR-13-CHIN-0002
dc.description.sponsorshipAdvanced Materials by Design - ANR-10-LABX-0042
dc.description.sponsorshipInitiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.subject.enprinted electronics
dc.subject.enrheology
dc.subject.enconducting polymer inks
dc.title.enTuning the rheology of polymer conducting inks for various deposition processes
dc.typeArticle de revue
dc.identifier.doi10.1021/acs.chemmater.9b01387
dc.subject.halChimie/Polymères
bordeaux.journalChemistry of Materials
bordeaux.page6936-6944
bordeaux.volume31
bordeaux.issue17
bordeaux.peerReviewedoui
hal.identifierhal-02169663
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02169663v1
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