Fabrication of Graphene Oxide/PEDOT:PTS hybrid film using interfacial-polymerization
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In this paper, successful fabrication of highly conductive transparent graphene-doped PEDOT:PSS composite thin films is reported for the first time, using conventional and substrate vibration-assisted ultrasonic spray coating (SVASC). To suppress the challenges associated with spraying of the precursor solution containing graphene, graphene sheets were broken by sonication and were uniformly dispersed and stabilized in PEDOT:PSS aqueous solution using isopropyl alcohol (IPA). The mechanism of dispersion of graphene in PEDOT:PSS aqueous solution using IPA is elucidated. The maximum electrical conductivity of 298 S.cm−1 was obtained for a graphene-doped PEDOT:PSS thin film, which compared to the pristine PEDOT:PSS thin films shows a ten-fold increase, with a transparency comparable to that of the indium tin oxide (ITO)-coated glass.
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In this paper, we report chemical vapor phase polymerization (VPP) deposition of novel poly(3,4-ethylenedioxythiophene) (PEDOT)/graphene nanocomposites as solid tantalum electrolyte capacitor cathode films. The PEDOT/graphene films were successfully prepared on porous tantalum pentoxide surface as cathode films through the VPP procedure. The results indicated that the high conductivity nature of PEDOT/graphene leads to the decrease of cathode films resistance and contact resistance between PEDOT/graphene and carbon paste. This nanocomposite cathode film based capacitor showed ultralow equivalent series resistance (ESR) ca. 12 mΩ and exhibited better capacitance-frequency performance than the PEDOT based capacitor. The leakage current investigation revealed that the device encapsulation process does not influence capacitor leakage current, indicating the excellent mechanical strength of PEDOT-graphene films. The graphene showed a distinct protection effect on the dielectric layer from possible mechanical damage. This high conductivity and mechanical strength graphene based conducting polymer nanocomposites indicated a promising application future for organic electrode materials.
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Reduced graphene oxide-poly(3,4-ethylenedioxythiophene):p-toluene sulfonate (rGO-PEDOT:PTS) hybrid electrode films were synthesized directly on a substrate by interfacial polymerization between an oxidizing solid layer and liquid droplets of 3,4-ethylenedioxythiophene (EDOT) produced by electrospraying. The EDOT reduced the graphene oxide by donating electrons during its transformation into PEDOT:PTS, and hybrid films consisting of rGO distributed in a matrix of PEDOT:PTS were obtained. These rGO-PEDOT:PTS hybrid films showed excellent electrical conductivities as high as 1,500 S/cm and a sheet resistance of 70 Ω sq(-1). The conductivity values are up to 50% greater than those of films containing conductive PEDOT:PTS alone. These results confirm that highly conductive rGO-PEDOT:PTS hybrid films can potentially be used as organic transparent electrodes.
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ADVERTISEMENT RETURN TO ISSUEPREVRetractionNEXTORIGINAL ARTICLEThis notice is a retraction.Retraction of "Vapor Phase Polymerization Deposition of Conducting Polymer/Graphene Nanocomposites as High Performance Electrode Materials"Yajie Yang, Shibin Li*, Luning Zhang, Jianhua Xu, Wenyao Yang, and Yadong JiangCite this: ACS Appl. Mater. Interfaces 2016, 8, 29, 19185Publication Date (Web):July 15, 2016Publication History Published online15 July 2016Published inissue 27 July 2016https://pubs.acs.org/doi/10.1021/acsami.6b07671https://doi.org/10.1021/acsami.6b07671retractionACS PublicationsCopyright © 2016 American Chemical Society. This publication is available under these Terms of Use. Request reuse permissions This publication is free to access through this site. Learn MoreArticle Views1423Altmetric-Citations-LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail PDF (105 KB) Get e-Alertsclose Get e-Alerts
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