A silanol-functionalized polyoxometalate with excellent electron transfer mediating behavior to ZnO and TiO2 cathode interlayers for highly efficient and extremely stable polymer solar cells

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dc.contributor.authorTountas, Marinos
dc.contributor.authorTopal, Yasemin
dc.contributor.authorVerykios, Apostolis
dc.contributor.authorSoultati, Anastasia
dc.contributor.authorKaltzoglou, Andreas
dc.contributor.authorPapadopoulos, Theodoros A.
dc.contributor.authorAuras, Florian
dc.date.accessioned2020-03-26T19:52:47Z
dc.date.available2020-03-26T19:52:47Z
dc.date.issued2018
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractCombining high efficiency and long lifetime under ambient conditions still poses a major challenge towards commercialization of polymer solar cells. Here we report a facile strategy that can simultaneously enhance the efficiency and temporal stability of inverted photovoltaic architectures. Inclusion of a silanolfunctionalized organic-inorganic hybrid polyoxometalate derived from a PW9O34 lacunary phosphotungstate anion, namely (nBu(4)N)(3)[PW9O34(tBuSiOH)(3)], significantly increases the effectiveness of the electron collecting interface, which consists of a metal oxide such as titanium dioxide or zinc oxide, and leads to a high efficiency of 6.51% for single-junction structures based on poly(3-hexylthiophene): indene-C60 bisadduct (P3HT: IC(60)BA) blends. The above favourable outcome stems from a large decrease in the work function, an effective surface passivation and a decrease in the surface energy of metal oxides which synergistically result in the outstanding electron transfer mediating capability of the functionalized polyoxometalate. In addition, the insertion of a silanol-functionalized polyoxometalate layer significantly enhances the ambient stability of unencapsulated devices which retain nearly 90% of their original efficiencies (T-90) after 1000 hours.en_US
dc.description.sponsorshipIKY-fellowship; European Social Fund-ESFEuropean Social Fund (ESF); Greek national fundsGreek Ministry of Development-GSRT [MIS: 5001552]; TUBITAK 2211-C program; Selcuk University BAP officeSelcuk University [PN: 14201047]; Alexander von Humboldt FoundationAlexander von Humboldt Foundationen_US
dc.description.sponsorshipA. S. acknowledges an IKY-fellowship co-financed by the European Social Fund-ESF and Greek national funds under the "Strengthening Post-Doctoral Research (MIS: 5001552)'' through the Operational Program "National Human Resources Development Program, Education and Lifelong Learning'' (priority axes 6, 8, 9). Y. T. and M. K. acknowledge that part of this work also has been supported by TUBITAK 2211-C program and Selcuk University BAP office (PN: 14201047). A. F. acknowledges postdoctoral funding from Alexander von Humboldt Foundation. T. P. acknowledges the use of HPC computational facilities provided by the Faculty of Science and Engineering, University of Chester, UK.en_US
dc.identifier.doi10.1039/c7tc04960aen_US
dc.identifier.endpage1469en_US
dc.identifier.issn2050-7526en_US
dc.identifier.issn2050-7534en_US
dc.identifier.issue6en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1459en_US
dc.identifier.urihttps://dx.doi.org/10.1039/c7tc04960a
dc.identifier.urihttps://hdl.handle.net/20.500.12395/36287
dc.identifier.volume6en_US
dc.identifier.wosWOS:000424652000023en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherROYAL SOC CHEMISTRYen_US
dc.relation.ispartofJOURNAL OF MATERIALS CHEMISTRY Cen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.titleA silanol-functionalized polyoxometalate with excellent electron transfer mediating behavior to ZnO and TiO2 cathode interlayers for highly efficient and extremely stable polymer solar cellsen_US
dc.typeArticleen_US

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