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dc.contributor.authorTountas, Marinos*
dc.contributor.authorTopal, Yasemin*
dc.contributor.authorVerykios, Apostolos*
dc.contributor.authorSoultati, Anastasia*
dc.contributor.authorKaltzoglou, Andreas*
dc.contributor.authorPapadopoulos, Theodoros A.*
dc.contributor.authorAuras, Florian*
dc.contributor.authorSeintis, Kostas*
dc.contributor.authorFakis, Mihalis*
dc.contributor.authorPalilis, Leonidas C.*
dc.contributor.authorTsikritzis, Dimitris*
dc.contributor.authorKennou, Stella*
dc.contributor.authorFakharuddin, Azhar*
dc.contributor.authorSchmidt-Mende, Lukas*
dc.contributor.authorGardelis, Spyros*
dc.contributor.authorKus, Mahmut*
dc.contributor.authorFalaras, Polycarpos*
dc.contributor.authorDavazoglou, Dimitris*
dc.contributor.authorArgitis, Panagiotis*
dc.contributor.authorVasilopoulou, Maria*
dc.date.accessioned2018-03-16T13:43:15Z
dc.date.available2018-03-16T13:43:15Z
dc.date.issued2017-12-21
dc.identifier.citationTountas, M., et al. (2017). A Silanol-Functionalized Polyoxometalate with Excellent Electron Transfer Mediating Behavior to ZnO and TiO 2 Cathode Interlayers for Highly Efficient and Extremely Stable Polymer Solar Cells. Journal of Materials Chemistry C, 6, 1459-1469. http://doi.org/10.1039/C7TC04960Aen
dc.identifier.issn2050-7526
dc.identifier.doi10.1039/C7TC04960A
dc.identifier.urihttp://hdl.handle.net/10034/620964
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 silanol-functionalized organic–inorganic hybrid polyoxometalate derived from a PW9O34 lacunary phosphotungstate anion, namely (nBu4N)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:IC60BA) 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 (T90) after 1000 hours.
dc.language.isoenen
dc.publisherRoyal Society of Chemistryen
dc.relation.urlhttp://pubs.rsc.org/en/content/articlelanding/2018/tc/c7tc04960a#!divAbstracten
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectPolymer solar cellsen
dc.titleA Silanol-Functionalized Polyoxometalate with Excellent Electron Transfer Mediating Behavior to ZnO and TiO 2 Cathode Interlayers for Highly Efficient and Extremely Stable Polymer Solar Cellsen
dc.typeArticleen
dc.contributor.departmentNational Centre for Scientific Research “Demokritos"; University of Athens; Pamukkale University Cal Vocational High School; University of Patras; University of Chester; University of Cambridge; University of Konstanz; Selcuk Universityen
dc.identifier.journalJournal of Materials Chemistry C
dc.internal.reviewer-noteE-mailed Theodoros to confirm version 2/3/18 JJen
dc.date.accepted2017-12-20
or.grant.openaccessYesen
rioxxterms.funderUnfundeden
rioxxterms.identifier.projectUnfundeden
rioxxterms.versionAMen
rioxxterms.licenseref.startdate2018-12-21
refterms.dateFCD2019-07-15T09:55:37Z
refterms.versionFCDAM
html.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 silanol-functionalized organic–inorganic hybrid polyoxometalate derived from a PW9O34 lacunary phosphotungstate anion, namely (nBu4N)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:IC60BA) 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 (T90) after 1000 hours.


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