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dc.contributor.authorKlem, Maykel dos Santos [UNESP]
dc.contributor.authorMorais, Rogério Miranda [UNESP]
dc.contributor.authorRubira, Rafael Jesus Gonçalves [UNESP]
dc.contributor.authorAlves, Neri [UNESP]
dc.identifier.citationThin Solid Films, v. 669, p. 96-102.
dc.description.abstractHere we describe a screen-printed supercapacitor produced onto filter paper using poly (3, 4-ethylene dioxythiophene)-poly (styrene sulfonate) (PEDOT:PSS)/multiwall carbon nanotube (MWCNT) composite as active materials. We use a gel-like electrolyte based on poly (vinyl alcohol) and phosphoric acid (PVA/H3PO4), serving as both an ionic conductor and as an electrode separator. The electrodes are physically characterized through micro-Raman scattering analyses, sheet resistance measurements as a function of the printed number of layers and through scanning electron microscopy. The supercapacitor performance is investigated through impedance spectroscopy, equivalent circuit fitting, cyclic voltammetry (CV), long-term cycle stability and galvanostatic charge/discharge. The electrodes exhibit a low sheet resistance, reaching 17 Ω sq−1, being suitable for use as both electrode and the current collector. The supercapacitor shows good capability behavior over impedance spectroscopy and CV measurements, and 72% of capacitance retention after 1000 cycles. We find a maximum specific capacitance of 20,3 F g−1 for a charge/discharge current of 1 mA, and equivalent series resistance of 60 Ω leading to energy and power densities of 3,1 Wh kg−1 and 420 W kg−1, respectively. In conclusion, we describe here a flexible supercapacitor without metal collectors produced by a simple printing method.en
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.relation.ispartofThin Solid Films
dc.subjectPEDOT: PSS
dc.titlePaper-based supercapacitor with screen-printed poly (3, 4-ethylene dioxythiophene)-poly (styrene sulfonate)/multiwall carbon nanotube films actuating both as electrodes and current collectorsen
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.description.affiliationSão Paulo State University (UNESP) School of Technology and Applied Sciences
dc.description.affiliationUnespSão Paulo State University (UNESP) School of Technology and Applied Sciences
dc.rights.accessRightsAcesso aberto
dc.description.sponsorshipIdFAPESP: 2015/18091-8
dc.description.sponsorshipIdFAPESP: 2018/02604-4
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