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dc.contributor.authorCanton-Vitoria, Rubénes_ES
dc.contributor.authorIstif, Emines_ES
dc.contributor.authorHernández-Ferrer, Javieres_ES
dc.contributor.authorUrriolabeitia, Esteban P.es_ES
dc.contributor.authorBenito, Ana M.es_ES
dc.contributor.authorMaser, Wolfgang K.es_ES
dc.contributor.authorTagmatarchis, Nikoses_ES
dc.identifier.citationACS Applied Materials and Interfaces 11(6): 5947–5956 (2019)es_ES
dc.description6 Figuras. Información complementaria disponible en la página web del editor.es_ES
dc.description.abstractTransition-metal dichalcogenides (TMDs) attract increased attention for the development of donor–acceptor materials enabling improved light harvesting and optoelectronic applications. The development of novel donor–acceptor nanoensembles consisting of poly(3-thiophene sodium acetate) and ammonium functionalized MoS2 and WS2 was accomplished, while photoelectrochemical cells were fabricated and examined. Attractive interactions between the negatively charged carboxylate anion on the polythiophene backbone and the positively charged ammonium moieties on the TMDs enabled in a controlled way and in aqueous dispersions the electrostatic association of two species, evidenced upon titration experiments. A progressive quenching of the characteristic fluorescence emission of the polythiophene derivative at 555 nm revealed photoinduced intraensemble energy and/or electron transfer from the polymer to the conduction band of the two TMDs. Photoelectrochemical assays further confirmed the establishment of photoinduced charge-transfer processes in thin films, with distinct responses for the MoS2- and WS2-based systems. The MoS2-based ensemble exhibited enhanced photoanodic currents offering additional channels for hole transfer to the solution, whereas the WS2-based one displayed increased photocathodic currents providing supplementary pathways of electron transfer to the solution. Moreover, scan direction depending on photoanodic and photocathodic currents suggested the existence of yet unexploited photoinduced memory effects. These findings highlight the value of electrostatic interactions for the creation of novel donor–acceptor TMD-based ensembles and their relevance for managing the performance of photoelectrochemical and optoelectronic processes.es_ES
dc.description.sponsorshipThis project has received funding from the European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement No. 642742. Support of this work by the projects “Advanced Materials and Devices” (MIS 5002409), which is implemented under the “Action for the Strategic Development on the Research and Technological Sector”, and “National Infrastructure in Nanotechnology, Advanced Materials and Micro-/Nanoelectronics” (MIS 5002772), which is implemented under the “Reinforcement of the Research and Innovation Infrastructures”, funded by the Operational Program “Competitiveness, Entrepreneurship and Innovation” (NSRF 2014–2020) and cofinanced by Greece and the European Union (European Regional Development Fund) to N.T. is acknowledged. A.M.B. and W.K.M. further acknowledge Spanish MINEICO (project grant ENE2016-79282-C5-1-R), the Gobierno de Aragón (Grupo Reconocidos DGA-T03_17R), and associated EU Regional Development Funds. E.P.U. thanks Gobierno de Aragón (Grupo de Investigación de Referencia E19_17R). The authors are thankful for SEC measurements carried out at Laboratories de Chime des Polymères Organiques (LCPO), University of Bordeaux, CNRS, Bordeaux INP. We would like to thank Dr. C. Chochos of the Institute of Biology, Medicinal Chemistry and Biotechnology/National Hellenic Research Foundation (IBMCB/NHRF) for helping with SEM images acquisition. NHRF acknowledges the General Secretariat for Research and Technology (GSRT) for the financial support through the Research Programs for Excellence under the Programmatic Agreement between Research Centers − GSRT (2015−2017), funded by Siemens SA.es_ES
dc.publisherACS Publicationses_ES
dc.subjectTransition-metal dichalcogenideses_ES
dc.subjectElectrostatic interactionses_ES
dc.subjectDialcogenuros de metales de transiciónes_ES
dc.subjectInteracciones electrostáticases_ES
dc.titleIntegrating water-soluble polythiophene with transition-metal dichalcogenides for managing photoinduced processeses_ES
dc.description.peerreviewedPeer reviewedes_ES
dc.contributor.funderEuropean Commissiones_ES
dc.contributor.funderMinisterio de Economía y Competitividad (España)es_ES
dc.contributor.funderGobierno de Aragónes_ES
dc.contributor.funderGreek Governmentes_ES
dc.contributor.funderSiemens Foundationes_ES
oprm.item.hasRevisionno ko 0 false*
dc.contributor.orcidCanton-Vitoria, Rubén [0000-0003-0595-0323]es_ES
dc.contributor.orcidIstif, Emin [0000-0003-4700-7050]es_ES
dc.contributor.orcidHernández-Ferrer, Javier [0000-0002-6586-6935]es_ES
dc.contributor.orcidUrriolabeitia, Esteban P. [0000-0001-9779-5820]es_ES
dc.contributor.orcidBenito, Ana M. [0000-0002-8654-7386]es_ES
dc.contributor.orcidMaser, Wolfgang K. [0000-0003-4253-0758]es_ES
dc.contributor.orcidTagmatarchis, Nikos [0000-0001-7590-4635]es_ES
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