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dc.contributor.authorDel Agua, Ien
dc.contributor.authorPorcarelli, Len
dc.contributor.authorCurto, Vincenzoen
dc.contributor.authorSanchez-Sanchez, Aen
dc.contributor.authorIsmailova, Een
dc.contributor.authorMalliaras, Georgeen
dc.contributor.authorMecerreyes, Den
dc.date.accessioned2018-07-18T15:23:40Z
dc.date.available2018-07-18T15:23:40Z
dc.date.issued2018-05en
dc.identifier.issn2050-7518
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/278236
dc.description.abstract© 2018 The Royal Society of Chemistry. Organic electrochemical transistors (OECTs) are being intensively developed for applications in electronics and biological interfacing. These devices rely on ions injected in a polymer film from an aqueous liquid electrolyte for their operation. However, the development of solid or semi-solid electrolytes are needed for future integration of OECTs into flexible, printed or conformable bioelectronic devices. Here, we present a new polyethylene glycol hydrogel with high Na + conductivity which is particularly suitable for OECTs. This novel hydrogel was synthesized using cost-effective photopolymerization of poly(ethylene glycol)-dimethacrylate and sodium acrylate. Due to the high water content (83% w/w) and the presence of free Na + , the hydrogel showed high ionic conductivity values at room temperature (10 -2 S cm -1 ) as characterized by electrochemical impedance spectroscopy. OECTs made using this hydrogel as a source of ions showed performance that was equivalent to that of OECTs employing a liquid electrolyte. They also showed improved stability, with only a 3% drop in current after 6 h of operation. This hydrogel paves the way for the replacement of liquid electrolytes in high performance OECTs bringing about advantages in terms of device integration and protection.
dc.format.mediumPrint-Electronicen
dc.languageengen
dc.titleA Na+ conducting hydrogel for protection of organic electrochemical transistors.en
dc.typeArticle
prism.endingPage2906
prism.issueIdentifier18en
prism.publicationDate2018en
prism.publicationNameJournal of materials chemistry. Ben
prism.startingPage2901
prism.volume6en
dc.identifier.doi10.17863/CAM.25584
dcterms.dateAccepted2018-04-18en
rioxxterms.versionofrecord10.1039/c8tb00201ken
rioxxterms.versionAM*
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2018-05en
dc.contributor.orcidPorcarelli, L [0000-0002-1624-382X]
dc.contributor.orcidIsmailova, E [0000-0001-6722-6782]
dc.contributor.orcidMalliaras, Georgios [0000-0002-4582-8501]
dc.contributor.orcidMecerreyes, D [0000-0002-0788-7156]
dc.identifier.eissn2050-7518
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEuropean Commission Horizon 2020 (H2020) Marie Sk?odowska-Curie actions (742865)
rioxxterms.freetoread.startdate2019-04-18


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